1. The branch of biology which deals with the study of chemical compounds and the chemical processes in the living organisms is called:
Chemistry
Biochemistry
Molecular biology
Both a and b
✅ The correct answer is option B.
Biological Molecules MCQs
3. Which chemical component has the same % in bacterial as well as the mammalian cell?
Water
Carbohydrate
Proteins
Lipids
✅ The correct answer is option A.
4. Which chemical component has the greatest contribution in the total mammalian cell weight?
Proteins
Carbohydrate
Lipids
Water
✅ The correct answer is option D.
5. Reactions in which simple substances are combined to form complex substances are called:
Metabolic reactions
Catabolic reactions
Anabolic reactions
None of these
✅ The correct answer is option C.
6. Which one is the basic element of organic compounds?
Oxygen
Hydrogen
Sulfur
Carbon
✅ The correct answer is option D.
7. The bond formed when two or more atoms complete their electron shells by sharing electrons is called:
Ionic bond
Hydrogen bond
Covalent bond
Electrovalent bond
✅ The correct answer is option C.
9. Which bond provides stability to complex carbohydrate molecules?
C-H
C-O
C-C
C-N
✅ The correct answer is option C.