Which statement best describes the relationship between photosynthesis and respiration?

• A. Photosynthesis stores energy in glucose molecules, while respiration releases energy from glucose.
• B. Photosynthesis and respiration both occur only in animal cells.
• C. Both photosynthesis and respiration consume oxygen and release carbon dioxide.
• D. Respiration produces glucose, while photosynthesis breaks it down.

Answer: (A)

Verified step by step guidance

1. Step 1: Begin by understanding the processes of photosynthesis and respiration. Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose molecules. Respiration, on the other hand, is the process by which cells break down glucose to release energy in the form of ATP.
2. Step 2: Analyze the first statement: 'Photosynthesis stores energy in glucose molecules, while respiration releases energy from glucose.' This aligns with the fundamental roles of these processes. Photosynthesis captures energy from sunlight and stores it in glucose, while respiration breaks down glucose to release energy for cellular activities.
3. Step 3: Evaluate the second statement: 'Photosynthesis and respiration both occur only in animal cells.' This is incorrect because photosynthesis occurs in plants, algae, and some bacteria, while respiration occurs in both plant and animal cells.
4. Step 4: Examine the third statement: 'Both photosynthesis and respiration consume oxygen and release carbon dioxide.' This is incorrect because photosynthesis consumes carbon dioxide and releases oxygen, while respiration consumes oxygen and releases carbon dioxide.
5. Step 5: Assess the fourth statement: 'Respiration produces glucose, while photosynthesis breaks it down.' This is incorrect because photosynthesis produces glucose, and respiration breaks it down to release energy.