Question 1
________ is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle.
◦ Glucose
◦ Phosphocreatine
◦ Protein
◦ Fatty acid
Question 2
During heavy exercise, the ATP requirements of active muscle are likely to be met by metabolism of
◦ protein.
◦ nucleotides.
◦ fatty acids.
◦ carbohydrates.