AP BIOLOGY

PLANTS

ROOTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These are small openings on the underside of a leaf that allow for gases (water vapor, CO2 and O2) to enter and leave the plant
A
guard cells
B
xylem
C
cambium
D
stomata
Explanation: 

Detailed explanation-1: -Stomata (noun, “STO-mah-tah”, singular “stoma”) These are the small pores in plant stems or leaves that allow carbon dioxide in and oxygen and water vapor out.

Detailed explanation-2: -Carbon dioxide and oxygen cannot pass through the cuticle, but move in and out of leaves through openings called stomata (stoma = “hole"). Guard cells control the opening and closing of stomata. When stomata are open to allow gases to cross the leaf surface, the plant loses water vapor to the atmosphere.

Detailed explanation-3: -stomate, also called stoma, plural stomata or stomas, any of the microscopic openings or pores in the epidermis of leaves and young stems. Stomata are generally more numerous on the underside of leaves.

Detailed explanation-4: -Stomata resemble doughnuts-a circular pore with a hole in the middle for gas to enter or leave the plant. The pore consists of two cells-each known as a guard cell.

Detailed explanation-5: -Although the surface of a leaf may look smooth, it is lined with tiny openings called stomata. When stomata are open, water vapor and other gases, such as oxygen, are released into the atmosphere through them.

There is 1 question to complete.