Praxis 5005 Practice Question
Which of the following molecules is a waste product of cellular respiration?
Correct Answer: D
Rationale: Cellular respiration converts glucose into energy, producing carbon dioxide as a byproduct. This waste product is expelled from the body during exhalation.
Option A, sucrose, is a carbohydrate that serves as an energy source rather than a waste product. Option B, oxygen, is consumed during cellular respiration, not produced. Option C, glucose, is the primary fuel for the process, not a waste. Thus, carbon dioxide is the only molecule listed that is generated as a waste product of cellular respiration, highlighting the process's efficiency in energy conversion and gas exchange.
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