Biconcave shape of RBC is due to binding of spectrin to-
Correct Answer: Ankyrin
Description: Ans. is 'a' i.e., Ankyrin * RBCs biconcave shape is due to membrane cytoskeleton.* RBC membrane cytoskeleton contains a filamentous meshwork of proteins that form a membrane cytoskeleton along the entire cytoplasmic surface of membrane. The most abundant and most important protein in this membrane cytoskeleton is Spectrin, a long flexible heterodimers. At ends it binds with junctional complex composed of F-actin tropomyocin, adducin and protein-4.1.* This cytoskeletal network is tethered to cell membrane at two sites-i) Mediated by ankyrin that links spectrin to Band-3.ii) Mediated by protein-4.1 that links junctional complex to Glycophorin C.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now