1. Which of the following would NOT allow a bacterium to adhere to a human cell?

Question

1. Which of the following would NOT allow a bacterium to adhere to a human cell?

A.

Peptidoglycan

B.

Nucleoid

C.

Capsule

D.

Fimbrae

2. Flagellin is the primary protein found in the flagella of bacteria. The protein folds into a compact form with alpha helices. Up to 30,000 flagellin chains may be found in a flagellum. What is the HIGHEST level of protein structure observed for functional flagellin?

A.

Tertiary structure

B.

Quaternary structure

C.

Secondary structure

D.

Primary structure

3. The dye crystal violet stains the following biological structure:

A.

fimbrae

B.

lipopolysaccharide

C.

peptidoglycan

D.

flagella

A.

Peptidoglycan

B.

Nucleoid

C.

Capsule

D.

Fimbrae

Explanation / Answer

1. Nucleoid

2. Secondary structure

3. Peptidoglycan

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