Question

In photosynthesis, the uptake of CO by plants occurs through openings on the surface of

A) roots.
B) stems.
C) leaves.
D) flowers.

Answer 1

In photosynthesis, plants take in CO2 through stomata on the underside of their leaves, which are regulated by guard cells.

Step-by-step explanation:

In photosynthesis, the uptake of CO2 by plants occurs through small, regulated openings called stomata.

These stomata are typically located on the underside of the leaves.

Each stoma is flanked by guard cells that regulate the opening and closing of the stomata by swelling or shrinking in response to osmotic changes.