The structure responsible for motility of bacteria is pilli flagella sheath caps

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Home ‣ Microbiology ‣ Bacteria Morphology Comments

Question
The structure responsible for motility of bacteria is
Options
A. pilli
B. flagella
C. sheath
D. capsules

Correct Answer

flagella

Bacteria Morphology problems

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1. Microcapsules are composed of
Options
A. proteins
B. polysaccharides
C. lipids
D. all of these

Discuss

Correct Answer: all of these

2. The next to last step in peptidoglycan biosynthesis is
Options
A. synthesis of the NAM-peptide subunit
B. removal of the subunit from bactoprenol
C. linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
D. cross-linking the peptide side chains of peptidoglycan

Discuss

Correct Answer: linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain

3. A cluster of polar flagella is called
Options
A. lophotrichous
B. amphitrichous
C. monotrichous
D. petritrichous

Discuss

Correct Answer: lophotrichous

4. Which of the following does not contain protein?
Options
A. Pili
B. Flagellum
C. Lipoteichoic acid
D. Porin

Discuss

Correct Answer: Lipoteichoic acid

5. Which of the following organism has sterols in their cytoplasmic membrane?
Options
A. Clostridum
B. Proteus
C. Mycoplasma
D. Bacillius

Discuss

Correct Answer: Mycoplasma

6. The common word for bacteria which are helically curved rods is
Options
A. cooci
B. pleomorphic
C. bacillus
D. spirilla

Discuss

Correct Answer: spirilla

7. 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

8. 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

9. 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)

10. Peptidoglycan is found only in the bacterial
Options
A. cell membrane
B. glycocalyx
C. cell wall
D. spore

Discuss

Correct Answer: cell wall

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