How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?
Plasma membrane is the outermost covering of the cell and regulates the movement of substances into the cell and out from it. It allows the entry of only some substances and prevents the movement of other materials. Hence, the membrane is selectively-permeable.
Movement of neutral solutes across the cell membrane – Neutral molecules move across the plasma membrane by simple passive diffusion. Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration.
Movement of polar molecules across the cell membrane – The cell membrane is made up of a phospholipid bilayer and proteins. The movement of polar molecules across the non-polar lipid bilayer requires carrier-proteins. Which are integral protein particles having certain affinity for specific solutes. As a result, they facilitate the transport of molecules across the membrane.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 6: How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it ....
Comments
Thanku it is very useful Anshu
Thnkue
Thankyou for helping me
Yaah helpful, saved me...
A helpful site
Nice question and useful also
good Q
Liked it
Good question
It\'s very necessary....and useful also