A person who sprints for 45 seconds will obtain most of his or her energy from muscle glycogen.
<h3>Energy metabolism during sprints</h3>
During sprinting or highly intense exercise activities, blood glucose is rapidly consumed. Rapid consumption of blood glucose may breach the blood glucose set point.
In order to maintain blood glucose homeostasis, glucose stored as glycogen in the muscles is converted back to glucose. The glucose is then utilized to produce ATP for the sprint or exercise.
Thus, a person who sprints for 45 seconds will have to obtain most of their energy from the glycogen stored in the muscles.
More on glucose metabolism can be found here: brainly.com/question/4707439
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A) muscle triglycerides.
B) plasma free fatty acids.
C) blood glucose.
D) muscle glycogen.
 
        
             
        
        
        
Plants produce<span> flowers to make </span>seeds<span>.</span>
        
                    
             
        
        
        
I believe the answer is Density have a very nice day
        
                    
             
        
        
        
Fats are a better source of energy than carbohydrates on a per carbon basis because one triglyceride molecule yields three fatty acid molecules.
<h3>
What is Fat?</h3>
This is an important energy source in the body and is usually stored in the body under adipose tissues.
They contain triglyceride with as much as 16 or more carbons in each one which helps to generate energy in a slow and efficient manner.
Read more about Fats here brainly.com/question/4176733
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The ability of a muscle to exert force is endurance.