Question

Select the correct statement w.r.t. plasma membrane:
(a) Lipids are arranged with polar head towards inner
side and non-polar tail towards outer side
(b) The lipid component of the membrane mainly
consist of phosphoglycerides
(c) RBC of human beings approximately has 40%
protein and 52% lipid
(d) The ratio of protein and lipid in the plasma membrane
is almost same in different cell types

Answer 1

Answer:

option c

Explanation:

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Answer 2

(c) RBC of human beings approximately has 40% -

RBC stands for red blood cells, which are also known as erythrocytes. It transports oxygen from the lungs to the rest of the body.

Hemoglobin, an iron-containing biomolecule, is abundant in the cytoplasm of erythrocytes.

RBC membranes are made up of proteins and lipids. It has a protein content of 40% and a protein content of 52%. Oligosaccharides make up the remaining 8% of the total.

The main membrane protein identified in erythrocytes is specttrin. Self-associative features of specttrin allow it to create a lattice with other RBC membrane proteins including actin. The RBC's unique features of strength and suppleness are due to its supporting lattice on the inner side of the lipid bilayer.