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 a method of preserving food by removing water.

Dehydration

Canning

Fermentation

2 / 40

Bacterial endospores are resistant to _______________.

Radiation

Desiccation

Heat

3 / 40

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

Amylase

Lysozyme

Protease

4 / 40

Which of the following is NOT a characteristic of viruses?

Cellular structure

Metabolism

Reproduction

5 / 40

The cell wall of fungi is primarily composed of _______________.

Cellulose

Chitin

Peptidoglycan

6 / 40

The spherical-shaped bacteria are called _______________.

Spirilla

Bacilli

Cocci

7 / 40

Which of the following is NOT a viral disease?

Tuberculosis

Influenza

HIV/AIDS

8 / 40

The bacterium responsible for causing stomach ulcers is _______________.

Helicobacter pylori

Escherichia coli

Staphylococcus aureus

9 / 40

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

Flagellum

Capsule

Pili

10 / 40

Which of the following is a sexually transmitted bacterial infection?

Tetanus

Gonorrhea

Tuberculosis

11 / 40

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

Filtration

Pasteurization

Autoclaving

12 / 40

Which of the following is NOT a fungal infection?

Athlete's foot

Cholera

Thrush

13 / 40

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

Budding

Lytic cycle

Lysogeny

14 / 40

_______________ is a disease caused by the protozoan Plasmodium.

Malaria

Tuberculosis

Cholera

15 / 40

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

Cell wall

Capsule

Ribosomes

16 / 40

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

Lipase

Amylase

Catalase

17 / 40

Which of the following is NOT a fungal disease?

Malaria

Ringworm

Candidiasis

18 / 40

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

Antiseptics

Disinfection

Photosynthesis

19 / 40

Which of the following is a prokaryotic microorganism?

Fungi

Protozoa

Bacteria

20 / 40

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

Facultative

Anaerobic

Aerobic

21 / 40

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

Transduction

Binary fission

Conjugation

22 / 40

_______________ is the study of microorganisms.

Virology

Microbiology

Genetics

23 / 40

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

Binary fission

Transduction

Conjugation

24 / 40

Which of the following is NOT a method of sterilization?

Refrigeration

Filtration

Autoclaving

25 / 40

_______________ is a method of controlling microbial growth using chemicals.

Refrigeration

Canning

Disinfection

26 / 40

The bacterial structure involved in conjugation is the _______________.

Pilus

Flagellum

Capsule

27 / 40

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

Latent

Acute

Chronic

28 / 40

Which of the following is a protozoan disease?

Influenza

Tuberculosis

Malaria

29 / 40

The viral genetic material can be either DNA or _______________.

Lipid

Protein

RNA

30 / 40

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

Bioremediation

Antibiotic therapy

Vaccination

31 / 40

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

Binary fission

Endocytosis

Pinocytosis

32 / 40

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

Pasteurization

Sterilization

Autoclaving

33 / 40

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

Vibrio

Coccus

Bacillus

34 / 40

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

Nitrification

Denitrification

Nitrogen fixation

35 / 40

Which of the following is a method of bacterial motility?

Pseudopodia

Cilia

Flagella

36 / 40

_______________ are viruses that infect bacteria.

Adenoviruses

Bacteriophages

Retroviruses

37 / 40

_______________ are multicellular fungi that reproduce by producing spores.

Yeasts

Molds

Mushrooms

38 / 40

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

Conjugation

Motility

Adhesion

39 / 40

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

Quorum sensing

Antibiotic

Toxin

40 / 40

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

Safranin

Crystal violet

Methylene blue

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adminJune 13, 2024Last Updated: October 15, 2024

0 27 2 minutes read