Question

which supports the choice in part a?

• glucose is eliminated as a waste product after cellular respiration occurs.
• glycogen is eliminated as a waste product after cellular respiration occurs.
• glycogen is converted to glucose to create energy through cellular respiration.
• glucose is converted to glycogen to create energy through cellular respiration.

Explanation:

To solve this, we analyze each option based on cellular respiration and glycogen/glucose roles:

1. Analyze Option 1: Glucose is used in cellular respiration, not eliminated as waste (waste is CO₂ and H₂O). Eliminate.
2. Analyze Option 2: Glycogen is a storage form of glucose, not a waste product of respiration. Eliminate.
3. Analyze Option 3: Glycogen (stored glucose) is converted to glucose, which then undergoes cellular respiration to produce energy (ATP). This matches biological processes.
4. Analyze Option 4: Glucose is converted to glycogen for storage, not to create energy (energy is made from glucose during respiration, not from converting glucose to glycogen). Eliminate.

We evaluate each option by recalling cellular respiration and glycogen/glucose functions. Glycogen is a glucose storage molecule; when energy is needed, glycogen converts to glucose, which is used in cellular respiration to generate energy. Other options misstate the roles of glucose/glycogen or waste products.

Answer:

C. Glycogen is converted to glucose to create energy through cellular respiration.