Question

1. doctors tested a patient to find out what molecules were in her cells. her cells contained normal levels of oxygen molecules, low levels of amino acid molecules, and low levels of glucose molecules. will this patient be able to exercise normally?

yes, as long as her cells have enough oxygen, her body will be able to exercise.

no, her cells need glucose to react with oxygen to release enough energy to exercise.

no, her cells need amino acids to react with oxygen to release enough energy to exercise.

no, her cells need glucose to react with amino acids to release enough energy to exercise.

Explanation:

Cellular respiration is the process by which cells generate energy. The main reactant for cellular respiration is glucose. Glucose reacts with oxygen ($\ce{C6H12O6 + 6O2->6CO2 + 6H2O + energy}$) to release energy in the form of ATP. Amino acids are mainly used for protein synthesis, repair, and growth of tissues, not as a primary energy source for exercise - related energy release in the way described in options c and d. Option a is incorrect because oxygen alone is not sufficient; glucose is the key fuel for the energy - releasing reaction (cellular respiration) during exercise.

Answer:

B. No, her cells need glucose to react with oxygen to release enough energy to exercise.