Microbiology Lecture Quiz Questions

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Microbiology Lecture Quiz Questions - Quiz

Let’s take a look back at the humble beginnings of our studies on microbiology, shall we? In the following quiz, we’ll be looking at the basics of the study, including the definition and what the study exactly entails from a biological standpoint, and seeing if you can get a good result. Remember, if you score 80% or higher on this quiz, you’re likely to master the section on microbiology in any exam you take going forward.


Questions and Answers
  • 1. 

    Define Microbiology.

    • A.

      The study of organisms too small to be seen without magnification.

    • B.

      The study of organisms that cause disease.

    • C.

      The study of organisms that live under the bed.

    • D.

      The study of organisms that are visible without magnification.

    Correct Answer
    A. The study of organisms too small to be seen without magnification.
    Explanation
    Microbiology is defined as the study of organisms that are too small to be seen without the use of magnification. This field of science focuses on studying microorganisms such as bacteria, viruses, fungi, and protozoa. By using various techniques and tools, microbiologists investigate the structure, function, and behavior of these microorganisms, as well as their interactions with humans, animals, and the environment. Understanding microbiology is crucial for advancements in medicine, agriculture, food safety, and environmental science.

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  • 2. 

    List three of the six types of microorganisms. (minus bacteria)

    Correct Answer
    Fungi
    Viruses
    Protozoa
    Algae
    Helminths
    Explanation
    The correct answer is Fungi, Viruses, and Protozoa. These are three types of microorganisms that are listed out of the six options provided. Fungi are eukaryotic organisms that include molds and yeasts. Viruses are non-living particles that require a host to replicate. Protozoa are single-celled organisms that can be found in various environments.

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  • 3. 

    Which of the following is not a discipline of Microbiology?

    • A.

      Phycology

    • B.

      Myology

    • C.

      Protozoology

    • D.

      Mycology

    • E.

      Bacteriology

    Correct Answer
    B. Myology
    Explanation
    Myology is the study of muscles and is not a discipline of microbiology. Microbiology focuses on the study of microorganisms such as bacteria, protozoa, fungi, and algae. Phycology is the study of algae, protozoology is the study of protozoa, mycology is the study of fungi, and bacteriology is the study of bacteria, all of which are disciplines within microbiology. Therefore, myology is the correct answer as it does not belong to the field of microbiology.

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  • 4. 

    This type of microorganisms has a nucleus.

    • A.

      Prokaryotes

    • B.

      Eukaryotes

    Correct Answer
    B. Eukaryotes
    Explanation
    Eukaryotes have a nucleus, which is a membrane-bound organelle that contains the genetic material of the cell. Prokaryotes, on the other hand, do not have a nucleus and their genetic material is located in the cytoplasm. Therefore, the correct answer is Eukaryotes.

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  • 5. 

    Viruses are unlike Prokaryotes and Eukaryotes because:

    • A.

      They contain a nucleus

    • B.

      They contain a protein capsule surrounding the microorganism

    • C.

      They inject mean things into people

    • D.

      They look weird

    • E.

      They are not a microorganism

    Correct Answer
    B. They contain a protein capsule surrounding the microorganism
    Explanation
    Viruses are unlike Prokaryotes and Eukaryotes because they contain a protein capsule surrounding the microorganism. This protein capsule, also known as a capsid, is a protective layer that encloses the genetic material of the virus. Prokaryotes and Eukaryotes do not have this feature. Additionally, viruses are considered acellular and not classified as microorganisms because they lack cellular structure and cannot carry out essential life processes on their own.

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  • 6. 

    Spontaneous Generation is:

    • A.

      The belief that some forms of life could arise from vital forces present in nonliving or decomposing matter.

    • B.

      The belief that all forms of life could arise from only living matter.

    • C.

      The belief that all forms of live were dependent upon the vital force supplied via homeopathic medicine.

    Correct Answer
    A. The belief that some forms of life could arise from vital forces present in nonliving or decomposing matter.
    Explanation
    Spontaneous Generation refers to the belief that certain forms of life could emerge from nonliving or decomposing matter due to the presence of vital forces. This theory was prevalent before the development of modern scientific understanding of biology and was eventually disproven through experiments conducted by Louis Pasteur. The correct answer accurately describes the concept of Spontaneous Generation, distinguishing it from the other two options which do not align with the historical understanding of this theory.

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  • 7. 

    Antoni van Leeuwenhoek first described microbes as:

    • A.

      Little Devils

    • B.

      Molecules

    • C.

      Microorganisms

    • D.

      Animalcules

    • E.

      Living Things

    Correct Answer
    D. Animalcules
    Explanation
    Antoni van Leeuwenhoek is known as the father of microbiology and was the first to observe and describe microorganisms. He referred to these tiny organisms as "animalcules," which means small animals. This term was used to emphasize their complex nature and behavior, as they exhibited characteristics similar to animals. Van Leeuwenhoek's observations and descriptions of animalcules laid the foundation for the understanding of microbes and their significance in the field of microbiology.

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  • 8. 

    The Germ Theory of Disease states that:

    • A.

      Many diseases are caused by the growth of microbes in the body.

    • B.

      Many disease are caused by sins and not worshiping a deity.

    • C.

      Many diseases are cause by insects that breed inside your body.

    • D.

      Many diseases are caused by the death of microbes in the body.

    • E.

      Many diseases are cause by poverty.

    Correct Answer
    A. Many diseases are caused by the growth of microbes in the body.
    Explanation
    The Germ Theory of Disease states that many diseases are caused by the growth of microbes in the body. This theory, proposed by Louis Pasteur and Robert Koch, revolutionized the understanding of disease transmission. It suggests that various microorganisms, such as bacteria, viruses, and fungi, can invade the body and cause infections. These microbes can multiply and spread, leading to the development of diseases. Understanding this theory has been crucial in the development of effective treatments and preventive measures for infectious diseases.

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  • 9. 

    Heat resistant bacteria were named:

    • A.

      Endospores

    • B.

      Heat-resistant microbes

    • C.

      Viruses

    • D.

      Hypermicrobes

    Correct Answer
    A. Endospores
    Explanation
    Heat resistant bacteria were named endospores because they form a specialized structure called an endospore to survive in harsh conditions such as high temperatures. Endospores are dormant, tough, and highly resistant to heat, chemicals, and radiation. They protect the bacterial DNA and other essential components, allowing the bacteria to remain viable even in extreme environments. Heat-resistant microbes and hypermicrobes are not specific terms used to describe heat-resistant bacteria, and viruses are not bacteria but a different type of microorganism.

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  • 10. 

    The development of aseptic technique included the following techniques:

    • A.

      Disinfecting your hands before operating

    • B.

      Changing your gown before operating

    • C.

      Using heat for sterilization

    • D.

      All of the above

    • E.

      None of the above

    Correct Answer
    D. All of the above
    Explanation
    The development of aseptic technique included several techniques, including disinfecting hands before operating, changing gown before operating, and using heat for sterilization. These practices were implemented to ensure a sterile environment and prevent the spread of infections during medical procedures.

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