NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are the specialised protein channels that help to transport water across the membrane in root hair cells?
A
proton pumps
B
apoptosis channels
C
water channels
D
aquaporins
Explanation: 

Detailed explanation-1: -Aquaporins (AQP) are integral membrane proteins that serve as channels in the transfer of water, and in some cases, small solutes across the membrane. They are conserved in bacteria, plants, and animals. Structural analyses of the molecules have revealed the presence of a pore in the center of each aquaporin molecule.

Detailed explanation-2: -Aquaporins are transmembrane proteins that regulate the flow of water into and out of cells.

Detailed explanation-3: -Aquaporins are a type of membrane protein. These work as water channels in the membrane. They help in transporting water molecules and sometimes solutes across the membranes. This type of transport is known as facilitated diffusion.

Detailed explanation-4: -Specialized membrane channel, proteins called aquaporins, facilitate water transport across cell membranes.

Detailed explanation-5: -The primary function of most aquaporins is to transport water across cell membranes in response to osmotic gradients created by active solute transport.

There is 1 question to complete.