Question

what catalyzes both photosynthesis and cellular respiration reactions? aquaporin carbon protein enzyme

Explanation:

Enzymes are biological catalysts. They speed - up chemical reactions in living organisms, including those in photosynthesis and cellular respiration. Aquaporins are channel proteins for water transport. Carbon is an element involved in the molecules of these processes but not a catalyst. Proteins are a large class and while some enzymes are proteins, the more specific answer here is enzyme as the catalyst.

Answer:

D. enzyme