Exam (elaborations)
Environmental microbiology MCQS
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MULTIPLE CHOICE QUESTIONS MICROBIOLOGY
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Here Are 50 Quizzes / Multiple-Choice Questions Related ToMICROBIOLOGY
With Their Correct Answers
1. What is the primary function of a bacterial capsule?
a) Attachment
b) Respiration
c) Reproduction
d) Excretion
**Answer: a) Attachment**
2. Which of the following is a gram-negative bacteria?
a) Staphylococcus aureus
b) Escherichia coli
c) Streptococcus pyogenes
d) Clostridium difficile
**Answer: b) Escherichia coli**
3. Which type of microorganism requires a host cell to replicate?
a) Bacteria
b) Fungi
, c) Viruses
d) Protozoa
**Answer: c) Viruses**
4. Which of the following is NOT a mode of bacterial reproduction?
a) Binary fission
b) Budding
c) Conjugation
d) Fragmentation
**Answer: d) Fragmentation**
5. Which microorganism is responsible for causing tuberculosis?
a) Streptococcus pneumoniae
b) Mycobacterium tuberculosis
c) Haemophilus influenzae
d) Neisseria meningitidis
**Answer: b) Mycobacterium tuberculosis**
6. Which microbial structure is involved in bacterial motility?
a) Capsule
b) Flagellum
c) Pilus
, d) Spore
**Answer: b) Flagellum**
7. Which of the following is a common sexually transmitted bacterial infection?
a) Influenza
b) Chlamydia
c) Hepatitis B
d) Measles
**Answer: b) Chlamydia**
8. Penicillin works by targeting the synthesis of:
a) DNA
b) Ribosomes
c) Cell wall
d) Lipids
**Answer: c) Cell wall**
9. Which process involves the conversion of nitrogen gas into ammonia?
a) Denitrification
b) Nitrification
c) Nitrogen fixation
d) Ammonification
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