_______ 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: : D
_______ 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: : D