BPSC – Combined Competitive Examination · प्रश्न 142

Biological membranes are composed of:

Lipids and proteins in varying combinations specific to each species, cell type and organelle
Lipids only
Proteins only
None of the above

उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (A) Lipids and proteins in varying combinations specific to each species, cell type and organelle

स्पष्टीकरण

Membranes are lipid–protein assemblies (with some carbohydrate) whose ratio differs between cell types.

(A) बरोबर
Correct: the fluid mosaic model: a lipid bilayer with proteins, varying by cell type.
(B) चूक
Wrong: membranes also contain proteins.
(C) चूक
Wrong: membranes also contain lipids.
(D) चूक
Wrong: option A is correct.