Which of the following is responsible for the exchange of gases in a leaf?

a. the phloem

b. the spongy

c. mesophyll

d. the stomata

The option which is responsible for the exchange of gases in a leaf is D. the stomata. Stomata are tiny pores in leaves that enable the flow of gases throughout a plant. The phloem transports sugar, spongy is an adjective referring to something that resembles a sponge, and mesophyll is the part of the leaf that contains chloroplasts.