Q. Select the wrong statement regarding membrane channels
A) They are proteins
B) They are usually gated, i.e., may be open or closed
C) All ions pass through the same type of channel
D) They form a huge pore in the outer membrane of plastids, mitochondria and some bacteria
Explanation
Cell membrane possesses certain pores, which are known as porins. These porins are known as transporter protein and is of two types, carrier proteins and channel proteins Carrier proteins bind to the particular solute, which has to be transported, while channel proteins are usually gated and allows solute of a particular size to pass through
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.