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- Question
The last step in synthesis of peptidoglycan is
Options- A. attachment of a peptide to muramic acid
- B. attaching two amino acids to form a cross-link
- C. attachment of a portion of peptidoglycan to a membrane lipid
- D. binding of penicillin to a membrane protein
- Correct Answer
- attaching two amino acids to form a cross-link
- 1. The bacteria deficient in cell wall is
Options- A. Treponema
- B. Mycoplasma
- C. Staphylococcus
- D. Klebsiella Discuss
- 2. Gram positive cells have a
Options- A. second outer membrane that helps to retain the crystal violet stain
- B. multiple layer of peptidoglycan that helps to retain the crystal violet stain
- C. thick capsule that traps the crystal violet stain
- D. periplasmic space that traps the crystal violet Discuss
- 3. The cooci which mostly occur in single or pairs are
Options- A. Streptococci
- B. Diplococci
- C. Tetracocci
- D. None of these Discuss
- 4. Cytoplasmic inclusions include
Options- A. ribosomes
- B. mesosomes
- C. fat globules
- D. all of these Discuss
- 5. The location where the bacterial chromosome concentrates is called
Options- A. nucleus
- B. nuclein
- C. nucleoid
- D. nucleose Discuss
- 6. The cocci which forms a chain is
Options- A. Streptococci
- B. diplococci
- C. Staphylococci
- D. Tetracocci Discuss
- 7. Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
Options- A. Cyanobacteria
- B. Mycoplasmas
- C. Bdellovibrios
- D. Spirochetes Discuss
- 8. Porins are located in
Options- A. the outer membrane of gram-negative bacteria
- B. the peptidoglycan layer of gram-positive bacteria
- C. the cytoplasmic membrane of both gram-negative and gram-positive bacteria
- D. the periplasmic space of gram-negative bacteria Discuss
- 9. Chemotaxis is a phenomenon of
Options- A. swimming away of bacteria
- B. swimming towards a bacteria
- C. swimming away or towards of bacteria in presence of chemical compound
- D. none of the above Discuss
- 10. Which of the following bacterial genera (that produces endospore) have medical importance?
Options- A. Clostridium
- B. Bacillus
- C. Both (a) and (b)
- D. None of these Discuss
Bacteria Morphology problems
Search Results
Correct Answer: Mycoplasma
Correct Answer: multiple layer of peptidoglycan that helps to retain the crystal violet stain
Correct Answer: Diplococci
Correct Answer: all of these
Correct Answer: nucleoid
Correct Answer: Streptococci
Correct Answer: Mycoplasmas
Correct Answer: the outer membrane of gram-negative bacteria
Correct Answer: swimming away or towards of bacteria in presence of chemical compound
Correct Answer: Both (a) and (b)
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