MCB 4403 EXAM 3 END OF PPT QUESTIONS with verified answers

MCB 4403 EXAM 3 END OF PPT
QUESTIONS with verified answers

Which of the following is NOT Gram-

positive?

a. Treponema

b. Clostridium

c. Bacillus

d. Streptococcus - correct answer ✔✔a. Treponema



Mycoplasmas differ from other bacteria

because they__________.

A) Are motile.

B) Are acid-fast.

C) Lack a cell wall.

D) Grow inside host cells.

E) Are not culturable - correct answer ✔✔C) Lack a cell wall



Which of the following genera grow

symbiotically within root nodules of

Élegumes as nitrogen-fixing bacteria?

A. Agrobacterium

B. Rhizobium

C. Nitrosomonas

D. Bacteroides - correct answer ✔✔B. Rhizobium

, Elementary bodies are found in

a. E. coli.

b. Streptococcus.

c. Chlamydiae.

d. Staphylococcus. - correct answer ✔✔c. Chlamydiae.



Borrelia is classified as a spirochete

because it

a. is aerobic.

b. possesses an axial filament.

c. is a rod.

d. is a pathogen. - correct answer ✔✔b. possesses an axial filament.



Helicobacter pylori is responsible for

A. pneumonia.

B. cholera.

C. dysentery.

D. peptic ulcer disease - correct answer ✔✔D. peptic ulcer disease



Which of the following is matched

correctly?

A) Mycoplasma - rod-shaped

B) Clostridium - aerobe

C) Neisseria - cell wall-less

D) Borrelia - spirochetes