Question

1. how are the processes of photosynthesis and cellular

a photosynthesis releases energy and cellular respiration stores energy.
b photosynthesis is unique to plants and cellular respiration is unique to
animals.
c the products of photosynthesis are carbon dioxide and water; cellular
respiration produces oxygen and sugars.
d photosynthesis removes carbon dioxide from the atmosphere and cellular
respiration releases carbon dioxide into the atmosphere.

Explanation:

• Option A: Photosynthesis stores energy (in the form of glucose) using light energy, and cellular respiration releases energy (by breaking down glucose). So, this option is incorrect.
• Option B: Both plants and animals (and many other organisms) carry out cellular respiration. Plants carry out both photosynthesis (in chloroplasts, when there is light) and cellular respiration. So, this option is incorrect.
• Option C: The products of photosynthesis are oxygen and sugars (like glucose). The reactants of cellular respiration are sugars and oxygen, and products include carbon dioxide and water. So, this option is incorrect.
• Option D: In photosynthesis, plants take in carbon dioxide (\(CO_2\)) from the atmosphere (along with water) and, using light energy, produce glucose and oxygen. In cellular respiration, organisms (including plants, animals etc.) break down glucose (in the presence of oxygen) and release carbon dioxide (and water and energy). So, this option is correct.

Answer:

D. Photosynthesis removes carbon dioxide from the atmosphere and cellular respiration releases carbon dioxide into the atmosphere.