Microbiology Quiz 2 - Chapter 4

13 Questions | By Dindiam | Updated: Mar 21, 2022 | Attempts: 592

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1.

The two functions of bacterial appendages are
- A.
  
  Attachment and protection
- B.
  
  Attachment and motility
- C.
  
  Motility and slime production
- D.
  
  Energy reactions and synthesis
- E.
  
  Protection and motility
2.

The basal body of a flagellum is anchored into the
- A.
  
  Hook
- B.
  
  Outer membrane
- C.
  
  Cell wall
- D.
  
  Peptidoglycan layer
- E.
  
  Cell membrane
3.

The term that refers to flagella at both poles is
- A.
  
  Amphitrichous
- B.
  
  Atrichous
- C.
  
  Lophotrichous
- D.
  
  Monotrichous
- E.
  
  Peritrichous
4.

Chemo taxis refers to the ability to
- A.
  
  Move in response to light
- B.
  
  Move in response to a chemical
- C.
  
  Not move in response to a chemical
- D.
  
  Transport desired molecules into cell
- E.
  
  None of the choices are correct
5.

The transfer of genes during bacterial conjugation involves rigid, tubular appendages called
- A.
  
  Flagella
- B.
  
  Cilia
- C.
  
  Fimbriae
- D.
  
  Periplasmic flagella (axial filaments)
- E.
  
  Sex pili
6.

A bacterial genus that has waxy mycolic acid in the cell walls is
- A.
  
  Mycobacterium
- B.
  
  Mycoplasma
- C.
  
  Streptococcus
- D.
  
  Corynebacterium
- E.
  
  Salmonella
7.

The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.
- A.
  
  Penicillinase
- B.
  
  Lysozyme
- C.
  
  Peptidase
- D.
  
  All of the choices are correct
- E.
  
  None of the choices are correct
8.

Lysozyme is most effective against
- A.
  
  Gram negative organisms
- B.
  
  Gram positive organisms
- C.
  
  Mycoplasmas
- D.
  
  Cyanobacteria
- E.
  
  Archea
9.

The fragile cell produced when gram positive bacteria are exposed to lysozyme or penicillin is a/an
- A.
  
  Protoplast
- B.
  
  Mycoplasma
- C.
  
  Spheroplast
- D.
  
  Glycocalyx
- E.
  
  Glycan
10.

All of the following structures contribute to the ability of pathogenic bacteria to cause disease except the
- A.
  
  Inclusions
- B.
  
  Fimbriae
- C.
  
  Capsule
- D.
  
  Slime layer
- E.
  
  Outer membrane of gram negative cell walls
11.

Which of the following does not pertain to endotoxins?
- A.
  
  Are specific bacterial cell wall lipids
- B.
  
  Can stimulate fever in the human body
- C.
  
  Can cause septic shock in the human body
- D.
  
  Involved in typhoid fever and some meningitis cases
- E.
  
  Found in acid fast bacterial cell walls
12.

Lipopolysaccharide is an important cell wall component of
- A.
  
  Gram negative bacteria
- B.
  
  Gram positive bacteria
- C.
  
  Acid fast bacteria
- D.
  
  Mycoplasmas
- E.
  
  Protoplasts
13.

The site/s for most ATP synthesis in prokaryotic cells is/are the
- A.
  
  Ribosomes
- B.
  
  Mitochondria
- C.
  
  Cell wall
- D.
  
  Inclusions
- E.
  
  Cell membrane