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361 The first antibody to contact invading microorganisms was

A: IgG

B: IgM

C: IgA

D: IgD

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362 Spirulina belongs to

A: Xanthophyceae

B: Cyanophyceae

C: Rhodophyceae

D: Pheophyceae

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363 Who provided the evidence that bacteriophage nucleic acid but not protein enters the host cell during infection

A: Alfred D. Hershey & Leonard Tatum in 1951

B: Alfred D. Hershey & Zindar Lederberg in 1951

C: Alfred D. Hershey & Martha Chase in 1952

D: Alfred D. Hershey & Macleod in 1952

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364 On soybean which of the following forms symbiosis

A: Azotobacter paspali

B: Rhizobium

C: Nostoc

D: Bradyrhizobium

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365 The symptom “general feeling of illness and discomfort” is called

A: Cystitis

B: Malaise

C: Anaphylactic shock

D: Arthritis

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366 Reverse isolation would be appropriate for

A: a patient with tuberculosis

B: a patient who has had minor surgery

C: a patient with glaucoma

D: a patient with leukemia

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367 Who demonstrated that open tubes of broth remained free of bacteria when air was free of dust.

A: Abbe Spallanzani

B: John Tyndall

C: Francisco Redi

D: Pasteur

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368 During Bio Geo chemical cycle some amount of elemental carbon was utilized by the microorganisms. The phenomenon is called as

A: Dissimilation

B: Immobilization

C: Decomposition

D: Neutralization

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369 The principle light-trapping pigment molecule in plants, Algae, and cyanobacteria is

A: Chlorophyll a

B: Chlorophyll b

C: Porphyrin

D: Rhodopsin

Microbiology MCQ
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370 “I found floating therein earthly particles, some green streaks, spirally wound serpent-wise…” These words are of

A: Leeuwenhoek

B: A. Jenner

C: Pasteur

D: Koch

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