Question

which statement correctly describes the diagram? a the process in which glucose is produced requires oxygen. b the process in which oxygen is used requires light energy. c the process in which carbon dioxide is used also forms glucose. d the process in which carbon dioxide is used releases light energy.

Explanation:

The diagram shows plant respiration (roots take in O₂, release CO₂) and photosynthesis (leaves release O₂). Photosynthesis uses CO₂ and produces glucose. Option A is wrong because glucose production (photosynthesis) doesn’t need O₂. Option B is wrong because O₂ use (respiration) doesn’t need light. Option D is wrong because CO₂ use (photosynthesis) stores light energy, not releases it. Option C is correct: photosynthesis uses CO₂ and forms glucose.

Answer:

C. The process in which carbon dioxide is used also forms glucose.