Doctors tested a patient and found that his cells contained normal levels of oxygen and glucose molecules, and no starch molecules. Will this patient be able to exercise normally?

A. 

Yes, the glucose and oxygen molecules can react together to release energy for the body to function.

B. 

No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

C. 

Yes, as long as his cells have glucose, they don’t need anything else to release energy for the body to function.

1 answer

The correct answer is:

A. Yes, the glucose and oxygen molecules can react together to release energy for the body to function.

Glucose and oxygen are essential for cellular respiration, a process that produces energy (ATP) for the body. While starch is a carbohydrate that can be broken down into glucose, the presence of glucose and oxygen means that the patient can still produce energy through aerobic respiration, allowing him to exercise normally.