Microbiology MCQs with Answers

adminJune 13, 2024Last Updated: October 15, 2024

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Welcome to the Microbiology MCQs with Answers. In this post, we have shared Microbiology Online Test for different competitive exams. Find practice Microbiology Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Microbiology.

Microbiology is the science studying microorganisms: bacteria, viruses, fungi, and protozoa. Inquiry into diversity, physiology, and functions of these small organisms – contributors to ecological systems and human health, broadly gives microbiology its foundations. Understanding the microbial world and its implications in the environment, industry, and medicine is fundamental in the science of microbiology.

Major branches of microbiology involve bacteriology, virology, mycology, and parasitology. Bacteriology is concerned with the study of bacteria accompanied by their role in diseases. Virology, on the other hand deals with viruses, their interactions, and relationships between host and viruses. Mycology discusses fungi and their applications in both biotechnology and medicine while parasitology explores parasites that affect human and animals’ health.

The simple technologies include cultivation methods, microscopy, and molecular diagnostics. Breakthroughs in sequencing techniques and bioinformatics have transformed the field from relatively simple applications to very high-tech ones, allowing for detailed analyses of the microbial genome and its interactions.

Its applications include drug development and quality control in pharmaceuticals, health check on soil in agriculture, and in public health, with regard to infectious diseases, resistance to antimicrobial agents, and development of vaccines. That’s why it has a throbbing and essential application.

Microbiology Online Quiz

By presenting 3 options to choose from, Microbiology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Microbiology Questions and Answers and click over the correct answer.

Test Name: Microbiology MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Microbiology

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1 / 40

_______________ is the process of heating food or liquids to a specific temperature to kill pathogenic microorganisms.

Pasteurization

Sterilization

Autoclaving

2 / 40

The enzyme responsible for breaking down peptidoglycan in bacterial cell walls is _______________.

Lysozyme

Amylase

Protease

3 / 40

Which of the following is a sexually transmitted bacterial infection?

Tuberculosis

Gonorrhea

Tetanus

4 / 40

_______________ is a method of controlling microbial growth using chemicals.

Canning

Disinfection

Refrigeration

5 / 40

The presence of flagella on a bacterial cell would facilitate _______________.

Motility

Adhesion

Conjugation

6 / 40

The process by which bacteria reproduce asexually by dividing into two identical daughter cells is called _______________.

Conjugation

Transduction

Binary fission

7 / 40

The cell wall of fungi is primarily composed of _______________.

Chitin

Peptidoglycan

Cellulose

8 / 40

_______________ are viruses that infect bacteria.

Adenoviruses

Retroviruses

Bacteriophages

9 / 40

The bacterial process of converting atmospheric nitrogen into a form that plants can use is called _______________.

Nitrogen fixation

Nitrification

Denitrification

10 / 40

Which of the following is NOT a method of controlling microbial growth?

Photosynthesis

Disinfection

Antiseptics

11 / 40

Which of the following is a method of viral entry into host cells?

Binary fission

Endocytosis

Pinocytosis

12 / 40

Which of the following is NOT a viral disease?

Tuberculosis

Influenza

HIV/AIDS

13 / 40

The process by which a virus acquires an envelope from a host cell membrane is called _______________.

Lytic cycle

Budding

Lysogeny

14 / 40

The primary stain used in the Gram stain procedure is _______________.

Methylene blue

Crystal violet

Safranin

15 / 40

_______________ is a method of preserving food by removing water.

Dehydration

Canning

Fermentation

16 / 40

Bacterial endospores are resistant to _______________.

Radiation

Heat

Desiccation

17 / 40

_______________ is the study of microorganisms.

Genetics

Microbiology

Virology

18 / 40

Which of the following is NOT a characteristic of viruses?

Metabolism

Reproduction

Cellular structure

19 / 40

The bacterial shape that resembles a curved rod is called _______________.

Bacillus

Coccus

Vibrio

20 / 40

Which of the following is a method of bacterial motility?

Pseudopodia

Flagella

Cilia

21 / 40

Which of the following is NOT a fungal infection?

Cholera

Athlete's foot

Thrush

22 / 40

The Gram stain differentiates bacteria based on differences in their _______________.

Cell wall

Ribosomes

Capsule

23 / 40

The enzyme that catalyzes the conversion of hydrogen peroxide to water and oxygen in bacteria is _______________.

Catalase

Amylase

Lipase

24 / 40

A bacterium that requires oxygen for growth is called a/an _______________ bacterium.

Anaerobic

Facultative

Aerobic

25 / 40

Which of the following is NOT a method of bacterial genetic recombination?

Binary fission

Conjugation

Transduction

26 / 40

Which of the following is a prokaryotic microorganism?

Fungi

Bacteria

Protozoa

27 / 40

Which of the following is NOT a method of sterilization?

Filtration

Autoclaving

Refrigeration

28 / 40

The bacterium responsible for causing stomach ulcers is _______________.

Helicobacter pylori

Staphylococcus aureus

Escherichia coli

29 / 40

The process of using living organisms or their products to control microbial growth is called _______________.

Antibiotic therapy

Vaccination

Bioremediation

30 / 40

_______________ are multicellular fungi that reproduce by producing spores.

Yeasts

Molds

Mushrooms

31 / 40

The chemical substance released by bacteria to communicate with each other is called _______________.

Quorum sensing

Antibiotic

Toxin

32 / 40

A viral infection that persists over a long period without causing symptoms is called a _______________ infection.

Chronic

Latent

Acute

33 / 40

Which of the following is NOT a fungal disease?

Ringworm

Candidiasis

Malaria

34 / 40

The viral genetic material can be either DNA or _______________.

Protein

Lipid

RNA

35 / 40

Which of the following is a protozoan disease?

Tuberculosis

Malaria

Influenza

36 / 40

The bacterial structure that provides protection against phagocytosis is the _______________.

Capsule

Flagellum

Pili

37 / 40

The spherical-shaped bacteria are called _______________.

Bacilli

Spirilla

Cocci

38 / 40

The process of using high temperatures to kill microorganisms is called _______________.

Autoclaving

Filtration

Pasteurization

39 / 40

The bacterial structure involved in conjugation is the _______________.

Capsule

Flagellum

Pilus

40 / 40

_______________ is a disease caused by the protozoan Plasmodium.

Cholera

Malaria

Tuberculosis

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adminJune 13, 2024Last Updated: October 15, 2024

0 20 2 minutes read