Microbiology: Anaerobic Bacteria Culture! Trivia Quiz

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Microbiology: Anaerobic Bacteria Culture! Trivia Quiz - Quiz

In the scientific study of microbiology, a culture is the means by which microbiologists allow microbial organisms to multiply by letting them reproduce under laboratory conditions, typically in a petri dish through a predetermined culture medium. In the following scientific quiz, we’re going to take a look at some examples of aerobic cultures and see if you can identify the different agar plates. Good luck!


Questions and Answers
  • 1. 

    THIS PLATE IS USED FOR THE ISOLATION OF PATHOGENIC NEISERIA.

    • A.

      BAP

    • B.

      MTM

    • C.

      XLD

    • D.

      THIO

    Correct Answer
    B. MTM
    Explanation
    MTM stands for Modified Thayer-Martin medium, which is a selective agar plate used for the isolation and identification of pathogenic Neisseria species. Neisseria species, such as Neisseria gonorrhoeae and Neisseria meningitidis, are fastidious bacteria that require specific growth conditions for isolation. MTM contains various antibiotics and selective agents that inhibit the growth of other bacteria and allow the growth of Neisseria species. Therefore, MTM is the correct answer as it is specifically designed for the isolation of pathogenic Neisseria.

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  • 2. 

    IDENTIFY THIS PLATE IT IS HIGHLY ENRICHED AND SUPPORTS MOST FASTIDIOUS AND NON FASTIDIOUS BACTERIA

    • A.

      BAP

    • B.

      SCA

    • C.

      XLD

    • D.

      HEK

    Correct Answer
    B. SCA
    Explanation
    SCA stands for Selective Columbia Agar. This plate is highly enriched and supports the growth of both fastidious and non-fastidious bacteria. It is a selective medium used for the isolation and identification of gram-positive bacteria, particularly Streptococcus pneumoniae. SCA contains various nutrients and selective agents that inhibit the growth of unwanted bacteria and promote the growth of target bacteria. It is commonly used in clinical laboratories for the diagnosis of respiratory infections and other diseases caused by gram-positive bacteria.

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  • 3. 

    STUDY OF MICRO ORGANISMS RELATED TO HUMAN DISEASE 

    • A.

      BIOLOGY

    • B.

      MICROBIOLOGY

    • C.

      CLINICAL BIOLOGY

    • D.

      CLINICAL MICROBIOLOGY

    Correct Answer
    D. CLINICAL MICROBIOLOGY
    Explanation
    Clinical microbiology is the correct answer because it specifically focuses on the study of microorganisms related to human diseases. This field involves the identification, diagnosis, and treatment of infectious diseases caused by bacteria, viruses, fungi, and parasites. Clinical microbiologists work in laboratories, analyzing patient samples to determine the causative agents of infections and to guide appropriate treatment. They also play a crucial role in monitoring and preventing the spread of infectious diseases in healthcare settings. Therefore, clinical microbiology is the most relevant discipline for studying microorganisms in relation to human diseases.

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  • 4. 

    THIS PLATE IS ENRICHED AND DIFFERENTAL BY HEMOLYTIC PATTERN

    • A.

      XLD

    • B.

      HEK

    • C.

      BAP

    • D.

      CAMPY BAP

    Correct Answer
    C. BAP
    Explanation
    The correct answer is BAP because BAP stands for Blood Agar Plate, which is a type of culture medium used to grow bacteria. The given statement suggests that the plate is enriched and differential by hemolytic pattern, which means that it contains additional nutrients to support the growth of bacteria and can differentiate between different types of bacteria based on their ability to break down red blood cells (hemolysis). BAP is commonly used in microbiology laboratories for this purpose.

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  • 5. 

    THIS PLATE HAS LACTOSE,SUCROSE, AND XYLOSE. WHEN REPORTED IT IS REPORTED WITH SIZE, COLOR AND H2S IF PRESENT

    • A.

      XLD

    • B.

      THIOGLYCOLLATE

    • C.

      BAP

    • D.

      TBCS

    Correct Answer
    A. XLD
    Explanation
    The correct answer is XLD. XLD stands for Xylose Lysine Deoxycholate agar, which is a selective and differential medium used for the isolation and differentiation of enteric pathogens, particularly Salmonella and Shigella species. It contains lactose, sucrose, and xylose as fermentable sugars, and the presence of H2S production is indicated by the black color of the colonies. This medium also helps in distinguishing between lactose fermenters and non-fermenters based on their ability to produce acid and gas.

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  • 6. 

    THIS IS ALSO KNOWN AS A HOLDING MEDIUM AND WHEN REPORTED IT IS EITHER GROWTH (G) OR NO GROWTH (NG)

    • A.

      THIO

    • B.

      TBCS

    • C.

      BAP

    • D.

      RLF

    Correct Answer
    A. THIO
  • 7. 

    THIS SELECTIVE AND DIFFERENTIAL PLATE IS USED FOR ISOLATION OF GRAM-NEGATIVE BACILLI. IS REPORTED WTH COLOR AND SIZE. THE COLOR IS REPORTED EITHER (RLF) OR (NLF).

    • A.

      MACCONKEY

    • B.

      TBCS

    • C.

      CAMPY BAP

    • D.

      BAP

    Correct Answer
    A. MACCONKEY
    Explanation
    MacConkey agar is a selective and differential medium used for the isolation of gram-negative bacilli. It contains bile salts and crystal violet, which inhibit the growth of gram-positive bacteria. It also contains lactose as a fermentable carbohydrate and neutral red as a pH indicator. Gram-negative bacteria that can ferment lactose produce acid, causing the colonies to turn pink or red (reported as RLF - red lactose fermenter). Non-lactose fermenting gram-negative bacteria do not produce acid and appear colorless (reported as NLF - non-lactose fermenter). Therefore, MacConkey agar helps in differentiating between lactose fermenters and non-fermenters among gram-negative bacilli.

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  • 8. 

    WHAT IS THE SHAPE OF COCCI?

    • A.

      ROUND

    • B.

      SQUARE

    • C.

      RECTANGULAR

    • D.

      CYLINDER

    Correct Answer
    A. ROUND
    Explanation
    Cocci are spherical or round-shaped bacteria. They are typically small and have a single, circular chromosome. This shape allows them to easily divide and multiply, making them one of the most common bacterial shapes.

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  • 9. 

    WHAT IS THE SHAPE OF BACCILLI

    • A.

      ROUND

    • B.

      SQUARE

    • C.

      RECTANGULAR

    • D.

      CYLINDER

    Correct Answer
    D. CYLINDER
    Explanation
    Baccilli are rod-shaped bacteria that are elongated and cylindrical in shape. This shape allows them to have a larger surface area for nutrient absorption and movement. They are typically longer than they are wide, resembling a cylinder.

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  • 10. 

    WHAT TYPE OF CELL IS BACTERIA?

    • A.

      EURKARYOTIC

    • B.

      PROKARYOTIC

    • C.

      RED BLOOD CELL

    • D.

      EOSINOPHIL

    Correct Answer
    B. PROKARYOTIC
    Explanation
    Bacteria are prokaryotic cells. Prokaryotic cells are characterized by the absence of a nucleus and other membrane-bound organelles. Bacteria have a simple cellular structure, with genetic material floating freely in the cytoplasm. They are single-celled organisms that can be found in various environments and can have different shapes. Bacteria play important roles in nature, both as decomposers and as symbiotic or pathogenic organisms.

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  • 11. 

    CYTOPLASMA IS THE INNER CONTENT OF THE PLASMIC WALL IN WHICH 80% IS MADE OF

    • A.

      DNA

    • B.

      WATER

    • C.

      ALCOHOL (IF JIMMY)

    • D.

      RNA

    Correct Answer
    B. WATER
    Explanation
    The cytoplasm is the inner content of the plasma membrane in a cell. It is a gel-like substance that fills the cell and contains various organelles. Approximately 80% of the cytoplasm is made up of water. Water is essential for many cellular processes, such as maintaining cell shape, facilitating chemical reactions, and transporting molecules within the cell. It also provides a medium for various organelles to function properly. Therefore, water is a major component of the cytoplasm.

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  • 12. 

    THIS PLATE HAS A FINAL pH OF 8.6, SUCROSE ONLY, AND IS FOR VIBRIO SPEICIES

    • A.

      TBCS

    • B.

      BAP

    • C.

      NLF

    • D.

      BAP

    Correct Answer
    A. TBCS
    Explanation
    The correct answer is TBCS because the given information states that the plate has a final pH of 8.6, which indicates that it is a Thiosulfate Citrate Bile Salt (TCBS) agar. TCBS agar is commonly used for the isolation and differentiation of Vibrio species, as it contains thiosulfate, citrate, and bile salts that inhibit the growth of most other bacteria while allowing the growth of Vibrio species. The presence of sucrose only further supports the use of TCBS agar, as it is a selective medium that promotes the growth of sucrose-fermenting Vibrio species.

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  • 13. 

    ONLY PLATE THAT IS INCUBATED AT 42^C

    • A.

      BAP

    • B.

      CAMPY BAP

    • C.

      TBCS

    • D.

      MAC

    Correct Answer
    B. CAMPY BAP
    Explanation
    The correct answer is CAMPY BAP because it is the only plate that is incubated at 42°C. BAP, TBCS, and MAC are typically incubated at 35-37°C, while CAMPY BAP is specifically designed for the incubation of Campylobacter species, which grow best at a higher temperature of 42°C.

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  • 14. 

    THE ENRICHMENTS IN THE CHOCOLATE PLATES ARE HEMOGLOBINFACTOR V AND X WHAT ARE THE CONTENTS IN FACTOR V AND X?

    • A.

      V-NAD X-HEMIN

    • B.

      V-NOTHING X- HEMOGLOBIN

    • C.

      NEITHER CONTAIN ANYTHING

    • D.

      V-HEMIN X-NAD

    Correct Answer
    A. V-NAD X-HEMIN
    Explanation
    The correct answer is V-NAD and X-HEMIN. Hemoglobin is a protein found in red blood cells that carries oxygen, and it is not a factor V or X. Factor V is a protein involved in blood clotting, and NAD is a coenzyme involved in cellular metabolism. Hemin is an iron-containing compound that is a component of hemoglobin. Therefore, V-NAD and X-HEMIN are the correct contents for factor V and X.

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  • 15. 

    WHAT CARBOHYDRATES ARE IN HEK?

    • A.

      NALIDIXIC ACID

    • B.

      SUCROSE- LACTOSE- SALICIN

    • C.

      FRUCTOSE-GLUCOSE

    • D.

      XYLOSE-FRUCTOSE

    Correct Answer
    B. SUCROSE- LACTOSE- SALICIN
    Explanation
    The correct answer is SUCROSE- LACTOSE- SALICIN. This answer suggests that the carbohydrates present in HEK are sucrose, lactose, and salicin.

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  • 16. 

    THIS PLATE IS SELECTIVE AND ENRICHED FOR GRAM-POSITIVE BACTERIA INHIBITS MOST GRAM-NEGATIVE AND IS REPORTED WITH SIZE AND COLOR

    • A.

      HEK

    • B.

      CNA

    • C.

      BAP

    • D.

      TBCS

    Correct Answer
    B. CNA
    Explanation
    The correct answer is CNA because CNA stands for Columbia Nalidixic Acid agar, which is a selective and enriched medium used for the isolation and cultivation of Gram-positive bacteria. It inhibits the growth of most Gram-negative bacteria and allows the growth of Gram-positive bacteria. The size and color of the colonies formed on the CNA agar can provide additional information about the specific types of Gram-positive bacteria present.

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  • 17. 

    ENRICHED MEDIA IS USED FOR THE GROWTH OF MOST FASTIDIOUS BACTERIA

    • A.

      TRUE

    • B.

      FALSE

    Correct Answer
    A. TRUE
    Explanation
    Enriched media refers to a type of culture medium that contains additional nutrients to support the growth of fastidious bacteria, which are organisms that have specific nutritional requirements. This type of media provides the necessary components that these bacteria need for optimal growth, allowing them to thrive. Therefore, it is true that enriched media is used for the growth of most fastidious bacteria.

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  • 18. 

    CULTIVATION OR TESTING MICROORGANISMS IN A LAB

    • A.

      IN VITRO

    • B.

      IN VIVO

    • C.

      SYNTHETIC

    • D.

      CULTURE

    Correct Answer
    A. IN VITRO
    Explanation
    The term "in vitro" refers to a process or experiment that is conducted outside of a living organism, typically in a laboratory setting. In the context of the given options, "in vitro" is the most suitable answer as it accurately describes the cultivation or testing of microorganisms in a lab environment. This term is commonly used in scientific research to differentiate experiments conducted in controlled laboratory conditions from those performed in living organisms (in vivo). The other options, "synthetic" and "culture," do not specifically relate to the process of cultivating or testing microorganisms in a lab.

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  • 19. 

    SELECTIVE MEDIA IS USED FOR.....

    • A.

      PARTICULAR BACTERIA GROWTH

    • B.

      GENERAL GROWTH

    • C.

      ALL BACTERIA

    • D.

      NO GROWTH

    Correct Answer
    A. PARTICULAR BACTERIA GROWTH
    Explanation
    Selective media is used for particular bacteria growth because it contains specific nutrients or chemicals that inhibit the growth of unwanted bacteria while promoting the growth of specific bacteria. This allows for the isolation and identification of specific bacterial species or strains from a mixed culture. Selective media is commonly used in microbiology laboratories for various purposes, such as identifying pathogenic bacteria or studying the antibiotic resistance patterns of certain bacterial strains.

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  • 20. 

    WHAT PERCENT AGAR IS IN SEMI SOLIDS?

    • A.

      0.2- 0.4 %

    • B.

      1-2%

    • C.

      0%

    • D.

      100%

    Correct Answer
    A. 0.2- 0.4 %
    Explanation
    Semi-solids typically contain a small percentage of agar, which is a gelatinous substance derived from seaweed. The given range of 0.2-0.4% is the most plausible answer as it falls within the low concentration range commonly used in semi-solid preparations. The other options of 1-2%, 0%, and 100% are not accurate as they either exceed the typical agar concentration or do not contain any agar at all.

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  • 21. 

    WHAT PERCENT AGAR IS IN A SOLID?

    • A.

      1-3 %

    • B.

      1.5- 2 %

    • C.

      0%

    • D.

      100%

    Correct Answer
    B. 1.5- 2 %
    Explanation
    The correct answer is 1.5-2%. This is because agar is commonly used as a solidifying agent in microbiology and is typically added to a concentration of 1.5-2% in order to create a solid medium for the growth of microorganisms.

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  • 22. 

    WHAT IS THE PURPOSE OF A DIFFERENTIAL MEDIA?

    • A.

      DISTIGUISHES DIFFERENCES BETWEEN GROUPS OF DISEASES

    • B.

      DISTIGUISHES DIFFERENCES BETWEEN GROUPS OF BACTERIA

    • C.

      DISTIGUISHES DIFFERENCES BETWEEN GROUPS OF PEPTONES

    • D.

      DISTIGUISHES DIFFERENCES BETWEEN GROUPS OF CULTURE

    Correct Answer
    B. DISTIGUISHES DIFFERENCES BETWEEN GROUPS OF BACTERIA
    Explanation
    A differential media is used to distinguish differences between groups of bacteria. This type of media contains specific nutrients and indicators that allow for the differentiation of bacterial species based on their ability to metabolize certain substances or produce specific enzymes. By observing the growth characteristics or color changes in the media, it is possible to identify and classify different types of bacteria. This helps in the identification and diagnosis of bacterial infections and aids in selecting appropriate treatment options.

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  • 23. 

    CULTIVATION--ISOLATION--SELECTION OF BACTERIA--DIFFERS BACTERIA--GROWTH IDENTIFICATION IS ALL APART OF WHAT?

    • A.

      PURPOSE OF CULTURE MEDIA

    • B.

      CULTIVATION

    • C.

      QC

    • D.

      BACTERIA GOWTH

    Correct Answer
    A. PURPOSE OF CULTURE MEDIA
    Explanation
    The purpose of culture media is to provide the necessary nutrients and conditions for the growth and multiplication of bacteria. Cultivation, isolation, selection of bacteria, and growth identification are all steps involved in the process of using culture media to study and analyze bacteria.

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  • 24. 

    WHAT ARE THE THREE HEMOLYITC PATTERNS?

    • A.

      ALPHA BRAVO DELTA

    • B.

      GAMMA BETA ALPHA

    • C.

      ALPHA ZULO BRAVO

    • D.

      RED BLUE WHITE

    Correct Answer
    B. GAMMA BETA ALPHA
    Explanation
    The correct answer is GAMMA, BETA, ALPHA. This is because the question is asking for the three hemolytic patterns, and out of the given options, only GAMMA, BETA, ALPHA represents a sequence of three patterns. The other options do not fit the criteria of being hemolytic patterns.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 25, 2010
    Quiz Created by
    Rk_eton
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