asked 226k views
1 vote
The bulk of the energy utilized by marathon runners is provided by _____ .

A. glycogen

B. fatty acids

C. blood glucose

D. protein

1 Answer

1 vote

Answer:

C

Step-by-step explanation:

Glucose is the molecule that instantly supplies energy. The metabolism of carbohydrates ends in the production of glucose which is released directly into the blood stream to supply energy for physical activity.

answered
User Chqrlie
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