AP BIOLOGY

PLANTS

TRANSPORT IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is important for the uptake of water by root hair cells?
A
contractile fibres
B
large surface area
C
thick outer wall
D
vacuole
Explanation: 

Detailed explanation-1: -Water passes from the soil to the root hair cell’s cytoplasm by osmosis. This happens because the water in the soil has a higher water potential than the root hair cell cytoplasm. Root hair cells have a large surface area for absorption of water and to speed up osmosis. Was this answer helpful?

Detailed explanation-2: -Plants are able to absorb water and mineral ions from the soil through the process of osmosis. Just behind the growing tips of roots are thousands of tiny root hairs. These tiny root hairs increase the surface area of the root epidermis and are the main area of osmosis.

Detailed explanation-3: -Q. The plants absorb water from the soil with the help of root hair through osmosis.

Detailed explanation-4: -Root hairs absorb water from the soil by the process of osmosis.

Detailed explanation-5: -root pressure, in plants, force that helps to drive fluids upward into the water-conducting vessels (xylem). It is primarily generated by osmotic pressure in the cells of the roots and can be demonstrated by exudation of fluid when the stem is cut off just aboveground.

There is 1 question to complete.