Question

recall it!
true or false: carbon in the form of carbon dioxide is needed for both processes of photosynthesis and cellular respiration.
true
false

Explanation:

Photosynthesis uses carbon dioxide ($\text{CO}_2$) as a key reactant to produce glucose and oxygen. Cellular respiration produces $\text{CO}_2$ as a waste product, using glucose and oxygen as reactants. Thus, $\text{CO}_2$ is not needed for both processes.

Answer:

false