AP BIOLOGY

PLANTS

TRANSPORT IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where is diffusion taking place in a leaf?
A
xylem into palisade cell
B
root hair cell into cortex
C
air spaces to surrounding environment
D
palisade mesophyll cells to air spaces
Explanation: 

Detailed explanation-1: -The gas exchange in plants takes place through stomata, and the process is called diffusion. The stomata are found in all the aerial plants and not in the roots. Epidermal cells present in the stomata surrounding the guard cells of the stoma are called subsidiary cells.

Detailed explanation-2: -Diffusion and the leaf It diffuses through small pores called stomata. The stomata are mainly in the lower epidermis (the underneath surface) of leaves.

Detailed explanation-3: -By opening and closing, stomata control the exchange of gases between a leaf and the air surrounding it. Oxygen and carbon dioxide move by diffusion from high to lower concentration through stomata.

Detailed explanation-4: -The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.

Detailed explanation-5: -Pores, known as stomata, allow gases to diffuse into the leaf.

There is 1 question to complete.