Question

Identify the components labelled as A, B, C and D in the given figure of cell membrane from the list (i) to (vii) given along with and select the correct option.
Components:
(i) Sugar (ii) Protein
(iii) Lipid bilayer (iv) Integral protein
(v) Cytoplasm (vi) Cell wall
(vii) External protein
The correct matching of components is

• A. A- (i), B- (ii), C- (iii), D- (iv)
• B. A- (ii), B- (i), C- (iii), D- (iv)
• C. A- (i), B- (ii), C- (iii), D- (vi)
• D. A- (i), B- (ii), C- (iii), D- (vii)

Answer 1

Answer: (A)

A- (i), B- (ii), C- (iii), D- (iv)

• The structure of cell membrane comprises of protein , sugar and lipids. The figure given in the question shows the fluid mosaic model of plasma membrane .
  
• Hence A - Sugar , B - Protein , C - Lipid bilayer , D - Integral protein .
• So, the correct option is 'Option A' .