Bacteria Morphology problems
- 1. The structure responsible for motility of bacteria is
Options- A. pilli
- B. flagella
- C. sheath
- D. capsules Discuss
Correct Answer: flagella
- 2. The common word for bacteria which are helically curved rods is
Options- A. cooci
- B. pleomorphic
- C. bacillus
- D. spirilla Discuss
Correct Answer: spirilla
- 3. Swimming towards a chemical of bacteria is termed as
Options- A. positive chemotaxis
- B. negative chemotaxis
- C. phototaxis
- D. magnetotaxis Discuss
Correct Answer: positive chemotaxis
- 4. Which of the following is analogous to mesosomes of bacteria?
Options- A. Mitochondria of eukaryotes
- B. Golgi apparatus of eukaryotes
- C. Lysosomes of eukaryotes
- D. None of these Discuss
Correct Answer: Mitochondria of eukaryotes
- 5. Which is most likely to be exposed on the surface of a gram-negative bacterium?
Options- A. Pore protein (porin)
- B. Protein involved in energy generation
- C. Lipoteichoic acid
- D. Phospholipids Discuss
Correct Answer: Pore protein (porin)
- 6. Peptidoglycan is found only in the bacterial
Options- A. cell membrane
- B. glycocalyx
- C. cell wall
- D. spore Discuss
Correct Answer: cell wall
- 7. Which of the following is exposed on the outer surface of a gram-negative bacterium?
Options- A. O-antigen of lipopolysaccharide (LPS)
- B. Polysaccharide portion of lipoteichoic acid (LTA)
- C. Braun lipoprotein
- D. Electron transport system components Discuss
Correct Answer: O-antigen of lipopolysaccharide (LPS)
- 8. Cyanobacteria have
Options- A. a gram-positive cell wall
- B. a gram-negative cell wall
- C. Neither (a) nor (b)
- D. No cell wall Discuss
Correct Answer: a gram-negative cell wall
- 9. Which of the following has Chinese letter arrangement?
Options- A. Bacillus anthracis
- B. Mycobacterium tuberculosis
- C. Clostridium tetani
- D. Corynebacterium diphtheriae Discuss
Correct Answer: Corynebacterium diphtheriae
- 10. The other name for peptidoglycan is
Options- A. mucopeptide
- B. murein
- C. both (a) & (b)
- D. none of these Discuss
Correct Answer: both (a) & (b)
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