Psychology MCQ: March 2019

Archive for March 2019

Marla believes herself to be hardworking, conscientious, and a team player; but when she received her job evaluations from her employer and peers, she was shocked to learn that she was not viewed as hardworking or as a team player. According to Rogers, Marla is experiencing

Marla believes herself to be hardworking, conscientious, and a team player; but when she received her job evaluations from her employer and peers, she...

Of the positive personality traits listed below, which was found to be the most strongly associated with life satisfaction?

Of the positive personality traits listed below, which was found to be the most strongly associated with life satisfaction? a. self-control b. appreciation...

Which of the following is suggested by the text as an aid to personal growth?

Which of the following is suggested by the text as an aid to personal growth? a. take responsibility for your behavior b. accept your uniqueness c. become...

As Albert looks over the village in which he has been living for the last year as a Peace Corps volunteer, he begins to feel a sense of harmony and ecstasy as if he is at one with the universe. According to Abraham Maslow, Albert is experiencing

As Albert looks over the village in which he has been living for the last year as a Peace Corps volunteer, he begins to feel a sense of harmony and...

According to the humanists, ____ is shown when people are free from dependence on external authority or on other people.

According to the humanists, ____ is shown when people are free from dependence on external authority or on other people. a. autonomy b. task centering c. spontaneity d. peak...

The process of fully developing personal potentials is referred to as

The process of fully developing personal potentials is referred to as a. organismic valuing. b. self-efficacy. c. self-reinforcement. d. self-actualization....

Humanism involves the view that

Humanism involves the view that a. personality is made up of instincts and unconscious forces. b. our behavior is controlled by genetics and learning. c. humans...

According to social learning theory, ____ refers to the child's emotional attachment to admired adults, especially those who provide love and care.

According to social learning theory, ____ refers to the child's emotional attachment to admired adults, especially those who provide love and care. a. imitation b. fixation c. congruence d. identification...

The fact that James allows himself one play on a video game after studying a half an hour illustrates the concept of ____ in social learning theory.

The fact that James allows himself one play on a video game after studying a half an hour illustrates the concept of ____ in social learning theory. a. self-efficacy b. self-reinforcement c. expectancy d. situational...

Albert Bandura believes that one of the most important expectancies we develop concerns our capacity for producing a desired result. He called this concept

Albert Bandura believes that one of the most important expectancies we develop concerns our capacity for producing a desired result. He called this...

According to social learning theory, ____ is perceived and interpreted by the individual subjectively rather than objectively.

According to social learning theory, ____ is perceived and interpreted by the individual subjectively rather than objectively. a. a habit b. a psychological...

Mark is very hungry. After class, he leaves the building and sees the signs of the fast food restaurants near the college. After seeing the signs, he gets in his car to satisfy his hunger. Dollard and Miller would describe Mark's hunger as a

Mark is very hungry. After class, he leaves the building and sees the signs of the fast food restaurants near the college. After seeing the signs, he...

According to ____, personality is acquired through classical and operant conditioning, observational learning, reinforcement, extinction, generalization, and discrimination.

According to ____, personality is acquired through classical and operant conditioning, observational learning, reinforcement, extinction, generalization,...

Criticisms of Freud's developmental theory have centered on

Criticisms of Freud's developmental theory have centered on a. the over-emphasis on sexuality in personality development. b. the need for a stern...

According to Freud, children from age six to puberty experience a quiet, settled time when psychosexual development is dormant. This is the ____ period.

According to Freud, children from age six to puberty experience a quiet, settled time when psychosexual development is dormant. This is the ____ period. a. genital b. latency c. phallic d. anal...

In Freudian theory, ____ refers to a preschool boy's attraction to his mother and feelings of rivalry with his father.

In Freudian theory, ____ refers to a preschool boy's attraction to his mother and feelings of rivalry with his father. a. the Oedipus complex b. the...

In an old movie, there were two friends who were always at odds with each other because one was compulsively neat and orderly, while his friend was extremely messy and disorganized. According to Freud, both men were fixated in the ____ stage.

In an old movie, there were two friends who were always at odds with each other because one was compulsively neat and orderly, while his friend was...

During the first year of life, a child goes through the stage, while between the ages of one and three years, the child is said to go through the stage.

During the first year of life, a child goes through the ____ stage, while between the ages of one and three years, the child is said to go through the...

Which region of the mind holds repressed memories and emotions, plus the instinctual drives of the id?

Which region of the mind holds repressed memories and emotions, plus the instinctual drives of the id? a. preconscious b. postconscious c. conscious d. unconscious...

According to Freud, when impulses from the id overwhelm the ego, the person experiences

According to Freud, when impulses from the id overwhelm the ego, the person experiences a. neurotic anxiety. b. organismic valuing. c. moral anxiety. d. incongruence....

According to Freud, the ego is governed by the

According to Freud, the ego is governed by the a. ego ideal. b. reality principle. c. pleasure principle. d. partial ego principle. Answer:&nb...

In the Freudian view of personality, which part of the personality is totally unconscious and dominated by biological instincts?

In the Freudian view of personality, which part of the personality is totally unconscious and dominated by biological instincts? a. id b. ego c. superego d. libido...

Which of the following is NOT one of the three mental structures that Freud stated composed one's personality?

Which of the following is NOT one of the three mental structures that Freud stated composed one's personality? a. ego b. ideal self c. id d. superego...

Freud became interested in the study of personality when he realized that

Freud became interested in the study of personality when he realized that a. many of his patients were faking symptoms. b. the treatment of psychological...

In the five-factor theory of personality, the dimension of ____ measures whether a person is self-disciplined, responsible, and achieving or irresponsible, careless, and undependable.

In the five-factor theory of personality, the dimension of ____ measures whether a person is self-disciplined, responsible, and achieving or irresponsible,...

The dimensions of the "Big Five" factor model of personality are

The dimensions of the "Big Five" factor model of personality are a. introversion, extroversion, neuroticism, stability, and agreeableness. b. extroversion,...

According to Cattell, the ____ traits are the core of a person's personality, that is, the person's underlying personality characteristics.

According to Cattell, the ____ traits are the core of a person's personality, that is, the person's underlying personality characteristics. a. cardinal b. surface c. common d. source...

According to Gordon Allport, characteristics that are shared by most members of a culture are termed

According to Gordon Allport, characteristics that are shared by most members of a culture are termed a. common traits. b. ethnic traits. c. general...

The concept of traits is used for

The concept of traits is used for a. situation specific behaviors. b. biologically-determined-characteristics. c. stable qualities a person shows...

Michael's psychologist believes that Michael's depression is due to unconscious struggles he is experiencing over the relationship he had as a child with his hypercritical but overprotective mother. Michael's psychologist emphasizes the ____ theory of personality.

Michael's psychologist believes that Michael's depression is due to unconscious struggles he is experiencing over the relationship he had as a child...

The four approaches to personality theories covered by the text include all of the following EXCEPT

The four approaches to personality theories covered by the text include all of the following EXCEPT a. psychodynamic. b. transactional analysis. c. humanistic. d. trait....

Genuine self-esteem is based on a(n) ____ appraisal of your strengths and weaknesses.

Genuine self-esteem is based on a(n) ____ appraisal of your strengths and weaknesses. a. high positive b. accurate c. modest d. balanced Answe...

Virginia is insecure, anxious, lacking in confidence, and overly self-critical. Virginia is experiencing

Virginia is insecure, anxious, lacking in confidence, and overly self-critical. Virginia is experiencing a. low self-esteem. b. organismic valuing. c. a...

people have personality traits that increase their chance of suffering a heart attack, while people take a more laid-back approach to life.

____ people have personality traits that increase their chance of suffering a heart attack, while ____ people take a more laid-back approach to life. a. Introverted;...

Melissa tends to be outgoing, assertive, and very sociable. Carl Jung would have classified Melissa as

Melissa tends to be outgoing, assertive, and very sociable. Carl Jung would have classified Melissa as a. androgynous. b. self-actualized. c. an extrovert. d. an...

A personality type is

A personality type is a. the hereditary aspect of a person's personality. b. the subjective evaluation of a character. c. a style of personality defined...

Based on the research to date, most psychologists would argue that personality is

Based on the research to date, most psychologists would argue that personality is a. a result of personal experiences. b. determined by hereditary...

The "amazing similarities" of identical twins may be a result of

The "amazing similarities" of identical twins may be a result of a. the Barnum effect. b. deliberate deceit by the twins. c. deliberate deceit by...

Heredity influences

Heredity influences a. one's body type. b. one's intelligence. c. one's behavioral tendencies. d. all of these. Answer: ...

If we describe Dan as being sociable, orderly, and intelligent, we are referring to his

If we describe Dan as being sociable, orderly, and intelligent, we are referring to his a. personality type. b. personality traits. c. temperamental...

Temperament refers to

Temperament refers to a. unique and enduring behavior patterns. b. learned traits of emotional response. c. hereditary emotional traits. d. charisma...

The term "character" refers to

The term "character" refers to a. unique and consistent behavior patterns. b. one's temperament. c. the hereditary aspects of one's emotional nature. d. favorable...

In psychology, the term personality implies that individual patterns of behavior are both stable and

In psychology, the term personality implies that individual patterns of behavior are both stable and a. desirable. b. universal. c. unique. d. inherited....

"Lindsey is a ""stay-at-home"" mother, who applied for her first job in ten years. The interviewer tells Lindsey that she did not get the job because of her lack of computer skills. Lindsey decides not to apply for anymore business positions, although she could take a computer short-course at the local community college to attain these skills. In regards to attaining a position at a company, Lindsey"

"Lindsey is a ""stay-at-home"" mother, who applied for her first job in ten years. The interviewer tells Lindsey that she did not get the job because...

The easiest conflict to resolve is usually a(n) ____ conflict.

The easiest conflict to resolve is usually a(n) ____ conflict. approach-approach approach-avoidance avoidance-avoidance double approach-avoidance...

"Marian describes her typical day. She has to deal with carpooling, traffic delays, finding a parking place at her job, working through lunch, and then coming home to cook, clean, and help with homework. Marian has stated a number of"

"Marian describes her typical day. She has to deal with carpooling, traffic delays, finding a parking place at her job, working through lunch, and then...

"Garrett has been feeling fatigued at work and has been experiencing more backaches and neckaches. Garrett believes that he must actively change aspects of his environment that contribute to his stress, such as utilizing stress-management techniques, getting more sleep, exercising more, and improving his diet. Garrett's view of health fits the"

"Garrett has been feeling fatigued at work and has been experiencing more backaches and neckaches. Garrett believes that he must actively change aspects...

The technique of stress inoculation

The technique of stress inoculation a. is characterized by all of these. b. has been shown to reduce anxiety and depression and increase self-esteem. c....

Physical symptoms and a tendency to make poor decisions are increased by

Physical symptoms and a tendency to make poor decisions are increased by a. "negative thoughts and ""self-talk.""" b. being unrealistically optimistic...

"In recent studies, students who wrote in a journal about their intensely positive experiences tended to show all of the following EXCEPT for"

"In recent studies, students who wrote in a journal about their intensely positive experiences tended to show all of the following EXCEPT for" a. becoming...

____ is a method of managing bodily reactions to stress by visualizing peaceful scenes.

____ is a method of managing bodily reactions to stress by visualizing peaceful scenes. a. Guided imagery b. Stress inoculation c. Progressive...

The tension-release method is another name for

The tension-release method is another name for a. progressive relaxation. b. guided imagery. c. stress inoculation. d. daily exercise sessions...

Which of the following is FALSE regarding meditation?

Which of the following is FALSE regarding meditation? a. Meditation is difficult to learn and may require a training course. b. Meditation promotes...

Gerry is an undergraduate at the local community college. He has just taken the College Life Stress Inventory and received a high score. This suggests that Gerry

Gerry is an undergraduate at the local community college. He has just taken the College Life Stress Inventory and received a high score. This suggests...

Which of the following is FALSE regarding social support?

Which of the following is FALSE regarding social support? a. Sharing negative events with others tends to amplify these emotions and decrease social...

"If Arnold is a ""manly man,"" we can predict that Arnold"

"If Arnold is a ""manly man,"" we can predict that Arnold" a. will not ask for help from his friends and family when stressed. b. "will tend to be...

Which of the following is NOT related to optimism?

Which of the following is NOT related to optimism? a. effective use of defense mechanisms b. dealing with problems head-on c. less stress and better...

Hardy people (those unusually resistant to the effects of stress) are characterized by a(n)

Hardy people (those unusually resistant to the effects of stress) are characterized by a(n) a. "sense of personal commitment to self, work, and family." b....

"Jon is a salesman, who keeps a hostility log in which he records what happened each day, what he thought and felt, and what actions he took. He is also learning to be more assertive and to trust others and not blame them for his failures. Jon is using strategies to"

"Jon is a salesman, who keeps a hostility log in which he records what happened each day, what he thought and felt, and what actions he took. He is...

Which of the following statements is/are FALSE regarding the Type A personality?

Which of the following statements is/are FALSE regarding the Type A personality? a. "While Type A behavior appears to promote heart disease, time...

Friedman and Rosenman referred to those people who were unlikely to have a heart attack as

Friedman and Rosenman referred to those people who were unlikely to have a heart attack as Type B personalities. Type A personalities. individuals...

Which of the following would you recommend to an individual who would like to learn to lower his or her high blood pressure?

Which of the following would you recommend to an individual who would like to learn to lower his or her high blood pressure? biofeedback alpha brainwave...

The beneficial effects of biofeedback in the treatment of psychosomatic disorders may be the result of

The beneficial effects of biofeedback in the treatment of psychosomatic disorders may be the result of generalized relaxation. a dramatic placebo...

"Gordon has been feeling fatigued at work and has been experiencing more backaches and neckaches. He goes to his doctor, hoping he can diagnose his condition and prescribe some medicine that will alleviate his problems. Gordon's view of health fits the"

"Gordon has been feeling fatigued at work and has been experiencing more backaches and neckaches. He goes to his doctor, hoping he can diagnose his...

Hypochondriacs suffer from

Hypochondriacs suffer from a. imaginary diseases. b. overactive endocrine glands. c. stress-induced diseases. d. feelings of inferiority. An...

"After coming to the U.S., Marta continued to speak only Portuguese and only interacted with others who had also immigrated from Brazil. She remains almost completely isolated from the American society in which she now resides. Marta's pattern of acculturation would be classified as and her acculturative stress level as ."

"After coming to the U.S., Marta continued to speak only Portuguese and only interacted with others who had also immigrated from Brazil. She remains...

____ are daily annoyances that are closely linked to immediate health and psychological well-being.

____ are daily annoyances that are closely linked to immediate health and psychological well-being. Microstressors Macrostressors Conflicts Burnouts...

Susceptibility to accidents and illness follows

Susceptibility to accidents and illness follows a. "any major change, whether positive or negative." b. excessive use of defense mechanisms. c. "disaster...

"In laboratory situations and elsewhere, helplessness can be reversed by procedures that"

"In laboratory situations and elsewhere, helplessness can be reversed by procedures that" involve all of these. arrange successful experiences. "involve...

"Jay's mother is always fussing at him about his messy room, his disorganized study habits, and his tendency to wait until the last minute to complete an assignment. Interestingly, when you observe Jay's mother, she also has these same shortcomings. By focusing on her son's bad habits, Jay's mother does not have to focus on her own bad habits. She is using the defense mechanism known as"

"Jay's mother is always fussing at him about his messy room, his disorganized study habits, and his tendency to wait until the last minute to complete...

Deidre refuses to believe that she has a drinking problem even though she has had two DUIs. Deidre is using which the defense mechanism?

Deidre refuses to believe that she has a drinking problem even though she has had two DUIs. Deidre is using which the defense mechanism? denial reaction...

Which of the following suggestions would help you handle conflicts more effectively?

Which of the following suggestions would help you handle conflicts more effectively? All of these are helpful suggestions. Try out important decisions...

"You must study for two tests within the next eight hours. Both tests should require six hours of study time, which is four hours more time than you have. You need to make a good grade on both tests. So, you begin studying for one test and then start thinking about the need to study for the other, so you switch to the other subject. You are experiencing due to this conflict."

"You must study for two tests within the next eight hours. Both tests should require six hours of study time, which is four hours more time than you...

"Maggie has been frustrated in her attempts to make an A on her psychology quizzes. She has been reading the chapter three times before each of the quizzes. She made a D on the first four quizzes. If she continues using this strategy, psychologists would say that she is exhibiting a"

"Maggie has been frustrated in her attempts to make an A on her psychology quizzes. She has been reading the chapter three times before each of the...

Scapegoating refers to

Scapegoating refers to a. habitual redirection of aggression to some person or group. b. use of apathy as a means of dealing with conflict. c. a...

____ is any response that is made with the aim of doing harm.

____ is any response that is made with the aim of doing harm. a. Aggression b. Assertion c. Circumvention d. Sublimation Answer: ...

"Which of the following would NOT be classified as an external, social frustration?"

"Which of the following would NOT be classified as an external, social frustration?" a. "My goal is to go to medical school, but I have earned only...

"If people experience repeated or intense trauma, then after this stressful event the person is likely to"

"If people experience repeated or intense trauma, then after this stressful event the person is likely to" a. experience symptoms associated with...

Common reactions to a traumatic experience include

Common reactions to a traumatic experience include a. insomnia and nightmares. b. depersonalization and mania. c. food-bingeing and bulimia. d....

"If you are facing a controllable stressor, it is best to use"

"If you are facing a controllable stressor, it is best to use" problem-focused coping. primary process thinking. emotion-focused coping. defense...

"Kirby and Marsha are college students. Kirby is always complaining about her class load and says she feels constantly fatigued. Although Marsha has a heavier class load and works part-time, Marsha rarely complains and does not appear as fatigued as Kirby. Which of the following statements is most likely TRUE?"

"Kirby and Marsha are college students. Kirby is always complaining about her class load and says she feels constantly fatigued. Although Marsha has...

It is threatening for a person to feel that he or she lacks ____ to cope with a particular demand.

It is threatening for a person to feel that he or she lacks ____ to cope with a particular demand. competence motivation support determination ...

Powerful and uncomfortable stress reactions are most likely to occur when a stressor is viewed as a during .

Powerful and uncomfortable stress reactions are most likely to occur when a stressor is viewed as a ____ during ____. threat; primary appraisal challenge;...

Which of the following would NOT be a solution to the problem of burnout?

Which of the following would NOT be a solution to the problem of burnout? a. motivational seminars that encourage workers to double their efforts b....

"According to recent research, people who have some control over unpleasant events tend to show ____ than those who have no control."

"According to recent research, people who have some control over unpleasant events tend to show ____ than those who have no control." lower stress...

"Pam is looking forward to the weekend, but her boss needs her to stay late on Friday and come in on Saturday morning in order to rewrite a report from another employee. This report must get to the main office by Monday. With this unexpected work and short deadline, Pam can be expected to be feeling the element of stress known as"

"Pam is looking forward to the weekend, but her boss needs her to stay late on Friday and come in on Saturday morning in order to rewrite a report from...

"In the ____ stage the body mobilizes its resources to cope with added stress by producing more adrenaline, noradrenaline, and cortisol."

"In the ____ stage the body mobilizes its resources to cope with added stress by producing more adrenaline, noradrenaline, and cortisol." alarm activation resistance defensive...

Physical symptoms in the earliest stage of the general adaptation syndrome are similar to those during

Physical symptoms in the earliest stage of the general adaptation syndrome are similar to those during a. any disease. b. hypnosis. c. sensory deprivation. d....

Good health-promoting behaviors include

Good health-promoting behaviors include a. not smoking cigarettes. b. no more than two alcoholic drinks per day. c. providing for periods of relaxation...

"To prevent disease, health psychologists first try to"

"To prevent disease, health psychologists first try to" a. remove behavioral risk factors. b. compensate for genetic predispositions. c. use maintenance...

"According to Vaillant and Mukamal, the health habits that people have by the time they are ____ will greatly affect their health, happiness, and life expectancy years later."

"According to Vaillant and Mukamal, the health habits that people have by the time they are ____ will greatly affect their health, happiness, and life...

The concept of behavioral risk factors is associated with which of the following?

The concept of behavioral risk factors is associated with which of the following? a. causes of physical disease b. the probability of becoming schizophrenic c....

Relative to skeletal muscle, smooth muscle

Relative to skeletal muscle, smooth muscle A) only uses less energy to generate a given amount of force. B) only can sustain contractile force without...

An important difference between single-unit and multiunit smooth muscle is the

An important difference between single-unit and multiunit smooth muscle is the A) numerous gap junctions in single-unit smooth muscle, which allow...

Put these myofibers in the order they would be recruited as the body moves from a weak to a strong stimulus:

Put these myofibers in the order they would be recruited as the body moves from a weak to a strong stimulus: 1. glycolytic fast-twitch fibers 2. fatigue-resistant...

The force generated by a single muscle fiber can be increased by

The force generated by a single muscle fiber can be increased by A) increasing frequency of action potentials only. B) increasing muscle length beyond...

Skeletal muscle fibers with the greatest endurance rely on ________ for energy.

Skeletal muscle fibers with the greatest endurance rely on ________ for energy. A) anaerobic glycolysis B) oxidative phosphorylation C) lactic acid...

The factor(s) that determine the duration of a twitch in various types of fibers is the speed of the

The factor(s) that determine the duration of a twitch in various types of fibers is the speed of the A) removal of Ca2+ ions from the sarcoplasm only. B)...

After death, when metabolism stops, in which step of the contractile cycle must skeletal muscles remain?

After death, when metabolism stops, in which step of the contractile cycle must skeletal muscles remain? A) It depends on what part of the contractile...

Put these events in the correct chronological sequence:

Put these events in the correct chronological sequence: 1. End-plate potentials trigger action potentials. 2. Transverse tubules convey potentials...

Which of the following is NOT a correct comparison of cardiac myocytes to other muscle cell types?

Which of the following is NOT a correct comparison of cardiac myocytes to other muscle cell types? A) Like smooth muscle cells, some cardiac...

A change in smooth muscle cell tension in the absence of a change in electrical potential of the cells is described as a

A change in smooth muscle cell tension in the absence of a change in electrical potential of the cells is described as a A) pacemaker potential. B)...

The calcium release channel in the smooth muscle sarcoplasmic reticulum that is opened by increases in phospholipase C activity is the

The calcium release channel in the smooth muscle sarcoplasmic reticulum that is opened by increases in phospholipase C activity is the A) inositol...

This protein is activated by the Ca2+-calmodulin complex to phosphorylate the myosin light chain protein.

This protein is activated by the Ca2+-calmodulin complex to phosphorylate the myosin light chain protein. A) tropomyosin B) myosin heavy chain C)...

Which of the following is NOT a property of single-unit smooth muscles?

Which of the following is NOT a property of single-unit smooth muscles? A) All smooth muscle cells are connected by gap junctions. B) Their...

Smooth muscle cells lack which protein(s)?

Smooth muscle cells lack which protein(s)? A) actin only B) myosin only C) troponin only D) tropomyosin only E) troponin and tropomyosin Answer: :...

Compared to skeletal muscle, contraction of smooth muscle cells is

Compared to skeletal muscle, contraction of smooth muscle cells is A) only a slower response to a stimulus. B) only sustained without fatigue. C)...

In order for the bicep muscle to shorten, the force applied by the muscle must be ________ the load applied at the hand.

In order for the bicep muscle to shorten, the force applied by the muscle must be ________ the load applied at the hand. A) greater than B) less than C)...

In the lever system that characterizes the interaction between bones and muscle, the bones act as the whereas the joints form the .

In the lever system that characterizes the interaction between bones and muscle, the bones act as the ________ whereas the joints form the ________. A)...

Before the entire muscle can change length, the force generated by the muscle must stretch the

Before the entire muscle can change length, the force generated by the muscle must stretch the A) eccentric contractile elements. B) parallel...

A contraction that generates enough force to move a load is known as , whereas one that generates force that equals the load is known as .

A contraction that generates enough force to move a load is known as ________, whereas one that generates force that equals the load is known as ________. A)...

The nervous system avoids muscle fatigue during submaximal contraction by

The nervous system avoids muscle fatigue during submaximal contraction by A) always recruiting slow-twitch motor units. B) asynchronous recruitment. C)...

Which fibers fatigue sooner?

Which fibers fatigue sooner? A) fast-twitch fibers B) slow-twitch fibers Answer: :...

Which fibers generate more force?

Which fibers generate more force? A) fast-twitch fibers B) slow-twitch fibers Answer: :...

Which of the following statements is NOT correct regarding the motor units and their activation?

Which of the following statements is NOT correct regarding the motor units and their activation? A) A motor unit in muscles of gross movement can...

Motor units that control skeletal muscles involved with fine motor movements (eye muscles or the hands) have ________ muscle fibers than motor units that control more gross movements (gastrocnemius muscle of the lower leg).

Motor units that control skeletal muscles involved with fine motor movements (eye muscles or the hands) have ________ muscle fibers than motor units...

A motor unit consists of

A motor unit consists of A) one neuron and all the skeletal muscle fibers it controls. B) one skeletal muscle fiber and all the neurons that control...

When comparing complete tetanus with unfused (incomplete) tetanus, which is true?

When comparing complete tetanus with unfused (incomplete) tetanus, which is true? A) Complete tetanus involves some relaxation between twitches. B)...

Within a single fiber, the tension developed during a twitch depends upon the

Within a single fiber, the tension developed during a twitch depends upon the A) amplitude of the action potential. B) length of the sarcomeres...

The speed with which force is developed by skeletal muscles is determined by the

The speed with which force is developed by skeletal muscles is determined by the A) Ca2+ ATPase activity. B) sarcoplasmic calcium concentration. C)...

Which of the following is a characteristic of slow-twitch oxidative skeletal muscle fibers?

Which of the following is a characteristic of slow-twitch oxidative skeletal muscle fibers? A) long contraction duration only B) few mitochondria...

The cause of skeletal muscle fatigue during extended submaximal exercise is primarily a(n)

The cause of skeletal muscle fatigue during extended submaximal exercise is primarily a(n) A) depletion of glycogen stores. B) depletion of creatine...

Muscle fatigue arises primarily from failure in

Muscle fatigue arises primarily from failure in A) neuromuscular transmission. B) initiation of contraction by the motor cortex. C) excitation-contraction...

During heavy exercise, the ATP requirements of active muscle are likely to be met by metabolism of

During heavy exercise, the ATP requirements of active muscle are likely to be met by metabolism of A) protein. B) fatty acids. C) carbohydrates. D)...

_______ is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle.

_______ is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle. A) Protein B) Glucose C) Fatty acid D) Phosphocreatine Answer: :...

The brief period of time between the beginning of the action potential in the muscle and the beginning of contraction is referred to as the

The brief period of time between the beginning of the action potential in the muscle and the beginning of contraction is referred to as the A) refractory...

The relaxation of skeletal muscle relies on the activity of the ________, which decreases cytoplasmic calcium concentration.

The relaxation of skeletal muscle relies on the activity of the ________, which decreases cytoplasmic calcium concentration. A) ryanodine receptor B)...

The contraction cycle is triggered by the rise in ________ released from the sarcoplasmic reticulum (SR).

The contraction cycle is triggered by the rise in ________ released from the sarcoplasmic reticulum (SR). A) Na+ B) K+ C) Ca2+ Answer: :...

The binding of acetylcholine to its receptor at the neuromuscular junction causes the opening of a

The binding of acetylcholine to its receptor at the neuromuscular junction causes the opening of a A) Na+ channel. B) channel for both Na+ and K+. C)...

The action potential traveling along the t-tubule is detected by the

The action potential traveling along the t-tubule is detected by the A) ryanodine receptor. B) dihydropyridine (DHP) receptor (L-type calcium channel). C)...

Which of the following would cause the crossbridge to transition from a high force state to a low force state?

Which of the following would cause the crossbridge to transition from a high force state to a low force state? A) increasing myosin ATPase activity B)...

The hydrolysis of ATP causes myosin to immediately

The hydrolysis of ATP causes myosin to immediately A) swivel, moving the actin molecule. B) release of ADP. C) release from the actin. D) rotate into...

The molecular event that occurs immediately after the power stroke is the

The molecular event that occurs immediately after the power stroke is the A) release of actin from the myosin head. B) hydrolysis of ATP by the myosin...

As ATP binds to the myosin head at the beginning of a muscle contraction cycle, the myosin head immediately

As ATP binds to the myosin head at the beginning of a muscle contraction cycle, the myosin head immediately A) detaches from actin. B) initiates binding...

Each myosin head has a binding site for

Each myosin head has a binding site for A) calcium only. B) actin only. C) ATP only. D) calcium and ATP. E) actin and ATP. Answer: :...

In order for high force cross bridges to form in contracting skeletal muscle, calcium must

In order for high force cross bridges to form in contracting skeletal muscle, calcium must A) bind to calmodulin to phosphorylate the myosin. B) phosphorylate...

When a skeletal muscle cell contracts and the muscle shortens,

When a skeletal muscle cell contracts and the muscle shortens, A) myosin heads generate a single power stroke. B) the position of an actin molecule...

The tension generated in a skeletal muscle fiber is directly proportional to the number of

The tension generated in a skeletal muscle fiber is directly proportional to the number of A) thick and thin filaments present. B) nebulin and titin...

When a skeletal muscle generates enough force during contraction to shorten,

When a skeletal muscle generates enough force during contraction to shorten, A) only the sarcomere will shorten. B) only the A band will shorten. C)...

The function of the titin protein is to

The function of the titin protein is to A) stabilize the position of the contractile filaments. B) pull Z lines together during contraction. C)...

The H zone contains

The H zone contains A) thick filaments. B) thin filaments only. C) actin only. D) thick and thin filaments. Answer: :...

The I band contains

The I band contains A) thick filaments only. B) thin filaments only. C) myosin only. D) thick and thin filaments. Answer: :...

Striated muscles are so-called because of a repeating pattern of light and dark bands. One repeating unit of the banding pattern is called a

Striated muscles are so-called because of a repeating pattern of light and dark bands. One repeating unit of the banding pattern is called a A) myofilament. B)...

Most of the time, the parallel thick and thin filaments of the myofibrils are connected by ________ that span the space between myosin and actin molecules.

Most of the time, the parallel thick and thin filaments of the myofibrils are connected by ________ that span the space between myosin and actin molecules. A)...