Microbiology MCQs Free Mock Test – Chapter 1 (MCQs 1-50)

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Take Microbiology Chapter 1 Mock Test with MCQs and Explanations. Test your knowledge and build confidence for the exam.

Microbiology Chapter 1 MCQ Mock Test is designed to assess your understanding of basic microbiology concepts through timed, exam-style assessments. This mock test helps identify knowledge gaps, improve accuracy, and build confidence for academic and competitive exams.

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Microbiology MCQs Chapter 1

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Chapter 1 with our Microbiology MCQs and explanations! Test your knowledge and understanding of key concepts with our complete set of multiple choice questions with detailed explanations for each answer. Increase your confidence and understanding of the fascinating world of microorganisms!

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Category: Microbiology

The main purpose of performing a throat culture is to detect the presence of which one of the following bacteria?

2 / 50

Category: Microbiology

Production of exotoxin that inhibits the release of acetylcholine at the neuromuscular junction act as ?

3 / 50

Category: Microbiology

Who provide the evidence that bacterioph age nucleic acid but not protein enters the host cell during infection?

4 / 50

Category: Microbiology

Fixation of atmospheric nitrogen is by means of?

5 / 50

Category: Microbiology

The bacterial genus where sterols are present in the cell membrane is ?

6 / 50

Category: Microbiology

Which of the following is not a recognised cause of diarrhoea?

7 / 50

Category: Microbiology

The prokaryotic cell membrane ?

8 / 50

Category: Microbiology

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

9 / 50

Category: Microbiology

The image obtained in a compound microscope is?

10 / 50

Category: Microbiology

Prokaryotic cells are more resistant to osmotic shock than eukaryotic cells because ?

11 / 50

Category: Microbiology

The coagulase is done to differentiate ?

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Category: Microbiology

Cary-Blair medium use a ?

13 / 50

Category: Microbiology

Transposase enzymes are responsible for ?

14 / 50

Category: Microbiology

The bacterium that infects other gram-negative bacteria is ?

15 / 50

Category: Microbiology

Pick out the vector using in human Genome project?

16 / 50

Category: Microbiology

Pertussis Vaccine is a type of ?

17 / 50

Category: Microbiology

If the venipuncture site is inadequately disinfected, blood culture are often contaminated with ?

18 / 50

Category: Microbiology

“I found floating therin earthly particles, some green streaks, spirally wound serpent-wise, and orderly arranged, the whole circumstance of each of these streaks was abut the thickness of a hair on one’s head”…. These words are of

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Category: Microbiology

β-Lactamases are an important cause of antibiotic resistance. Which one of the following is the most common site where β -lactamases are located ?

20 / 50

Category: Microbiology

The first antibody to contact invading microorganisms was?

21 / 50

Category: Microbiology

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

22 / 50

Category: Microbiology

For microscopic identification of mycobacterium tuberculosis ?

23 / 50

Category: Microbiology

Which of the following microorganisms is not responsible for urinary tract infection ?

24 / 50

Category: Microbiology

Salt and sugar preserve foods because they?

25 / 50

Category: Microbiology

Quelling Reaction is Negative for ?

26 / 50

Category: Microbiology

Direct microscopic count can be done with the aid of?

27 / 50

Category: Microbiology

wing bacterial structures does Lysozyme degrade ?

28 / 50

Category: Microbiology

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

29 / 50

Category: Microbiology

Diarrhoea is not caused by ?

30 / 50

Category: Microbiology

According to Pasteur statements which one of the following is true ?

31 / 50

Category: Microbiology

Which one of the following fungi is the most serious threat in a bone marrow transplant unit?

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Category: Microbiology

Reverse isolation would be appropriate for?

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Category: Microbiology

Which of these bacterial components is least likely to contain useful antigens?

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Category: Microbiology

Bacterial transformation was discovered by?

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Category: Microbiology

Of the following bacterial components, which one exhibits the most antigenic variation?

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Category: Microbiology

Which of the statements regarding gram staining is wrong?

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Category: Microbiology

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

38 / 50

Category: Microbiology

Which of the following is a gram-positive eubacterium?

39 / 50

Category: Microbiology

In a fluorescent microscope the objective lens is made of?

40 / 50

Category: Microbiology

Which of the following contains structures composed of N-acetylmuramic acid and N- acetylglucosamine ?

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Category: Microbiology

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

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Category: Microbiology

Enzymes responsible for alcoholic fermentation?

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Category: Microbiology

Which type of spores are produced sexually?

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Category: Microbiology

A process that involves a sex pilus and the subsequent transfer of plasmids carrying genes ?

45 / 50

Category: Microbiology

Spirulina belongs to?

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Category: Microbiology

Which of the following is diagnosed by serologic means ?

47 / 50

Category: Microbiology

Metachromatic granules are characterized feature of ?

48 / 50

Category: Microbiology

The association of endotoxin in gram-negative bacteria is due to the presence of ?

49 / 50

Category: Microbiology

In Bacterial growth cycle, which phase has maximum metabolic activity ?

50 / 50

Category: Microbiology

On soybean which of the following forms symbiotism ?

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