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Microorganisms Class 14 Flashcards
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Microorganisms Class 14 Flashcards

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Questions and Answers

Which of the following are classes of microorganisms? (Select all that apply)

  • Viruses (correct)
  • Robots
  • Bacteria (correct)
  • Fungi (correct)
  • What are bacteria?

    Simple, one-celled organisms that multiply rapidly.

    How are bacteria classified?

    By shape and arrangement.

    What shape are cocci?

    <p>Round and spherical.</p> Signup and view all the answers

    What are diplococci?

    <p>Cocci that occur in pairs.</p> Signup and view all the answers

    What are streptococci?

    <p>Cocci that occur in chains.</p> Signup and view all the answers

    What are staphylococci?

    <p>Cocci that occur in clusters.</p> Signup and view all the answers

    What shape are bacilli?

    <p>Rod shape.</p> Signup and view all the answers

    What are flagella?

    <p>Thread-like projections that allow movement.</p> Signup and view all the answers

    Bacilli in spore form are easy to kill.

    <p>False</p> Signup and view all the answers

    What bacteria can cause tuberculosis and tetanus?

    <p>Different types of bacilli.</p> Signup and view all the answers

    What shape are spirilla?

    <p>Spiral or corkscrew shape.</p> Signup and view all the answers

    What type of bacteria is vibrio?

    <p>Comma-shaped bacteria.</p> Signup and view all the answers

    What type of bacteria is spirochete?

    <p>Corkscrew-shaped bacteria.</p> Signup and view all the answers

    Which diseases are caused by spirilla?

    <p>Syphilis and cholera.</p> Signup and view all the answers

    What is used to kill bacteria?

    <p>Antibiotics.</p> Signup and view all the answers

    What is it called when an antibiotic is no longer effective against bacteria?

    <p>Antibiotic resistant.</p> Signup and view all the answers

    Study Notes

    Classes of Microorganisms

    • Major classes include Bacteria, Protozoa, Fungi, Rickettsiae, and Viruses.

    Bacteria

    • Simple, one-celled organisms that reproduce rapidly.

    Classification of Bacteria

    • Bacteria are classified by shape and arrangement.

    Cocci

    • Round and spherical bacteria.
    • Variants include:
      • Diplococci: Occur in pairs and can cause gonorrhea, meningitis, and pneumonia.
      • Streptococci: Occur in chains, leading to severe sore throat (strep throat) and rheumatic fever.
      • Staphylococci: Occur in clusters, associated with infections such as boils, urinary tract infections, wound infections, and toxic shock.

    Bacilli

    • Rod-shaped bacteria that can occur singly, in pairs, or chains.
    • Many bacilli possess flagella for movement and can form spores or thick-walled capsules under adverse growth conditions, making them hard to eliminate.
    • Associated with diseases such as tuberculosis, tetanus, pertussis (whooping cough), botulism, diphtheria, and typhoid.

    Flagella

    • Thread-like projections resembling tails that enable bacterial movement.

    Spirilla

    • Spiral or corkscrew-shaped bacteria.
    • Variants include:
      • Vibrio: Comma-shaped bacteria.
      • Spirochete: Corkscrew-shaped bacteria, linked to diseases like syphilis and cholera.

    Antibiotics

    • Medications designed to kill bacteria.

    Antibiotic Resistance

    • When bacteria become unaffected by antibiotics, they are referred to as antibiotic-resistant.

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    Description

    This quiz covers the classes of microorganisms, including bacteria, protozoa, fungi, rickettsiae, and viruses. Each flashcard provides definitions and classifications for different types of microorganisms and their characteristics. Perfect for studying microbiology terminology and concepts.

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