History of Microbiology - Mock Test 22

Question 211

Direct microscopic count can be done with the aid of?

A) Neuberg chamber B) Anaerobic chamber C) Mineral oil D) Olive oil

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Question 212

Salt and sugar preserve foods because they?

A) Make them acid B) Produce a hypotonic environment C) Deplete nutrients D) Produce a hypertonic environment

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Question 213

Pick out the vector using in human Genome project?

A) Phagemid vector B) Yeast artificial chromosomes C) Cosmid vectors D) Yeast episomal plasmids

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Question 214

The light emitted by luminescent bacteria is mediated by the enzyme?

A) Coenzyme Q B) Luciferase C) Lactose dehydrogenase D) Carboxylase reductase

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Question 215

The first antibody to contact invading microorganisms was?

A) IgG B) IgM C) IgA D) IgD

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Question 216

Spirulina belongs to?

A) Xanthophyceae B) Cyanophyceae C) Rhodophyceae D) Pheophyceae

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Question 217

On soybean which of the following forms symbiotism?

A) Azatobactor paspali B) Rhizobium C) Nostoc D) Bradyrhizobium

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Question 218

The symptome “ general feeling of illness and discomfort “ is called?

A) Cystitis B) Malaise C) Anaphylactic shock D) Arthritis

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Question 219

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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Question 220

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

A) Abbc Spallanzani B) John Tyndall C) Francisco Redi D) Pasteur

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