CBSE BoardEnglish MediumSTD 12 ScienceChemistry10. Biomolecules1 Mark
MCQ
The cell membranes are mainly composed of
A
Carbohydrates
✓
Proteins
C
Phospholipids
D
Fats
✓
Answer
Correct option: B.
Proteins
b (b) Three types of chemicals enter the composition of all membranes proteins, lipids and carbohydrates, proteins content varies from $46-76\%$ lipids $20-53\%$, while Carbohydrate content is $1-8\%$
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