Question

which statement correctly describes the diagram?
a the products of photosynthesis cannot be used by other organisms.
b the products of respiration can be used by plants for photosynthesis.
c the exchange of oxygen and carbon dioxide occurs only in respiration.
d the exchange of oxygen and carbon dioxide occurs only in photosynthesis.

Explanation:

Photosynthesis produces oxygen and glucose. Respiration produces carbon - dioxide and water. Carbon - dioxide is used by plants for photosynthesis. Option A is incorrect as products of photosynthesis (oxygen and glucose) are used by other organisms. Options C and D are incorrect because the exchange of oxygen and carbon - dioxide occurs in both photosynthesis and respiration.

Answer:

B. The products of respiration can be used by plants for photosynthesis.