Microbial Diseases and Host-Pathogen Interaction [GATE (Graduate Aptitude Test in Engineering) Microbiology]: Questions 1 - 4 of 17

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Question 1

Microbial Diseases and Host-Pathogen Interaction

Appeared in Year: 2016

Question

MCQ▾

Which of the following infectious agents cross the blood-brain barrier?

(P) Streptococcus pneumoniae

(Q) Coxsackie virus

(R) Rotavirus

(S) Streptococcus pyogenes

Choose the Correct Option:

Choices

Choice (4)Response

a.

R & S

b.

P & Q

c.

P & S

d.

Q & R

Question 2

Microbial Diseases and Host-Pathogen Interaction

Appeared in Year: 2019

Question

MCQ▾

Which of the following is a symbiotic bacterial genus that converts nitrogen into nitrogen containing compounds that are utilized by legume plants to synthesize amino acids?

Choices

Choice (4)Response

a.

Azotobacter

b.

Spirillum

c.

Rhizobium

d.

Clostridium

Question 3

Microbial Diseases and Host-Pathogen Interaction

Appeared in Year: 2020

Question

Assertion-Reason▾

Assertion(Ꭺ)

Diphtheria exotoxin is an example of the A-B type toxin.

Reason(Ꭱ)

The A component of the toxin is released from the host cell while the B component inhibits protein synthesis and kills the host cell.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question 4

Microbial Diseases and Host-Pathogen Interaction

Appeared in Year: 2019

Question

MCQ▾

Which part of the lipopolysaccharides has toxic properties that make some bacterial infections a potentially serious medical problem?

Choices

Choice (4)Response

a.

Lipid A portion

b.

Repeat carbohydrate units

c.

Polysaccharide sidechains

d.

Core region of polysaccharides

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