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Bacteria, Archea, Virus, and their broad classification is an important topic in the Environmental Studies section in CUET PG exam. Practising this topic will increase your score overall and make your conceptual grip on CUET PG exam stronger.
This article gives you a full set of CUET PG PYQs for Bacteria, Archea, Virus, and their broad classification with explanations for effective preparation. Practice of CUET PG Environmental Studies PYQs including Bacteria, Archea, Virus, and their broad classification questions regularly will improve accuracy, speed, and confidence in the CUET PG 2026 exam.
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CUET PG PYQs for Bacteria, Archea, Virus, and their broad classification with Solutions
1.
Which of the following bacteria are involved in denitrification process ?
A. Nitrosomonas
B. Bacillus
C. Pseudomonas
D. Nitrobacter
Choose the correct answer from the options given below :- A and B only
- A and C only
- C and D only
- B and C only
2.
Bacterial oxidation of pysite (FeS2) results in an environmental concern called- Methanogenesis
- Acetogenesis
- Sulfidogenesis
- Acid mine drainage
3.
Arrange the following steps involved in phagocytosis of bacterium by a macrophage :
A. Phagosome fuses with lysosome
B. Bacterium is ingested, forming a phagosome
C. Bacterium is killed and then digested by lysosomal enzymes
D. Bacterium becomes attached to membrane evaginations called pseudopodia
Choose the correct answer from the options given below- A, C, D, B
- D, B, A, C
- D, C, A, B
- B, C, A, D
4.
Evolution of drug-resistant bacteria is an example of- genetic drift
- natural selection
- bottleneck effect
- founder effect
5.
Arrange the following steps in E.coli translation sequentially.
(A) Elongation
(B) Release of polypeptide
(C) Initiation
(D) Folding of the polypeptide
(E) Termination
Choose the correct answer from the options given below- (B), (C), (D), (A), (E)
- (A), (D), (E), (C), (B)
- (C), (A), (E), (B), (D)
- (A), (B), (C), (D), (E)
6.
Bacterial artificial chromosomes (BAC) are capable of cloning fragments upto- 500-750 kb
- 200-250 kb
- 50-150 kb
- 300-350 kb
7.
Moritella, a bacterium, lives at 10,000 m depth under pressure of 700 - 800 atm in the oceans. The bacterium is an example -- Thermophile
- Mesophile
- Piezophile
- Xerophile
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