AP BIOLOGY

PLANTS

PLANT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two structures that limit transpiration are known as
A
Guard cells and xylem
B
Stomata and guard cells
C
xylem and phloem
D
stomata and phloem
Explanation: 

Detailed explanation-1: -Leaf stomata are the primary sites of transpiration and consist of two guard cells that form a small pore on the surfaces of leaves. The guard cells control the opening and closing of the stomata in response to various environmental stimuli and can regulate the rate of transpiration to reduce water loss.

Detailed explanation-2: -Each pair of guard cells and the regulated pore they enclose, known as a stoma or stomate, provides a conduit for atmospheric photosynthetic gas exchange (CO2 uptake and O2 release) and transpirational release of water (H2O) in terrestrial plants, in addition to defense against pathogenic invasion.

Detailed explanation-3: -Introduction. Stomata are pores in the plant epidermis that function as gateways linking the intercellular gas spaces to the external environment. Two guard cells surround each stomatal pore, and changes in turgor pressure of the guard cells regulate the size of the pore aperture.

Detailed explanation-4: -Stomata consist of microscopic pores, each flanked by a pair of guard cells. Guard cells can increase or decrease the size of the pore via changes in their turgor status, hence regulating both CO2 entry into the leaf and transpiration, or the loss of water from the leaf.

Detailed explanation-5: -There are the following different types of transpiration in plants: Stomatal transpiration. Lenticular transpiration.

There is 1 question to complete.