Which of the following statements comparing photosynthesis with cellular respiration is true?
A) Photosynthesis is a catabolic pathway, whereas cellular respiration is an anabolic pathway.
B) Water is formed during photosynthesis but broken apart during cellular respiration.
C) Both photosynthesis and cellular respiration require electron transport chains.
D) Both photosynthesis and cellular respiration produce CO₂ as metabolic end products.

Question

Quizplus · Accepted Answer

Both photosynthesis and cellular respiration require electron transport chains. This is because electron transport chains are a crucial part of ATP production in both processes.

Answer: D
 Both photosynthesis and cellular respiration produce CO₂ as metabolic end products. In photosynthesis, CO₂ is consumed in the calvin cycle, but is produced as a byproduct during the light reactions. In cellular respiration, CO₂ is produced during the Krebs cycle.

Which of the Following Statements Comparing Photosynthesis with Cellular Respiration