Biotechnology MCQS Past Papers in pdf download solved mcqs notes
1. A group of living organisms of the same species located in the same place at the same time is?
(A) Biosphere (B) Population
(C) Biome (D) Community
Ans: B
2. The tentative explanation of observation is ?
(A) Hypothesis (B) Theory
(C) Law (D) Deduction
Ans: A
3. The percentage of ribosomal RNA in the cell is?
(A) 20% (B) 50%
(C) 80% (D) 04%
Ans: C
4. The most abundant organic compound in mammalian cell is?
(A) Carbohydrates (B) Water
(C) Proteins (D) Lipids
Ans: C
5. The detachable cofactor of an enzyme is known as?
(A) Coenzyme (B) Prosthetic group
(C) Activator (D) Apoenzyme
Ans: C
6. According to Fischer’s Lock and Key model, the active site is?
(A) Flexible structure (B) Soft structure
(C) Attractive structure (D) Rigid structure
Ans: D
7. The mitochondria functions in ?
(A) Photosynthesis (B) Cellular respiration
(C) Electrolysis (D) Lipid storage
Ans: B
8. Cell wall of a prokaryotic cell is equipped with a unique molecule?
(A) Silica (B) Murein
(C) Wax (D) Chitin
Ans: B
9. Tay-Sachs disease results due to accumulation of _________________ in brain cells.
(A) Lipids (B) Glucose
(C) Proteins (D) Mg +2 ions
Ans: A
10. Cell wall is absent in ?
(A) Mycoplasma (B) Vibrio
(C) E.coli (D) Spirochete
Ans: A