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Microbiology Chapter 4 Study Guide

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  • What happens during endocytosis?

    Endocytosis is the process where a cell engulfs material from its environment by enclosing it in a membrane vesicle.

  • Examples of endocytosis

    Examples include phagocytosis (engulfing large particles) and pinocytosis (engulfing fluids and small molecules).

  • What happens during exocytosis?

    Exocytosis is the process where cells expel materials by vesicles fusing with the plasma membrane and releasing contents outside.

  • What is phagocytosis?

    Phagocytosis is a type of endocytosis where cells engulf large particles or microorganisms to destroy or digest them.

  • What is a helminth?

    A helminth is a parasitic worm, including roundworms and flatworms, that can infect humans and animals.

  • Examples of roundworms

    Examples include Ascaris lumbricoides, hookworms, and pinworms.

  • Examples of flatworms

    Examples include tapeworms and flukes.

  • Differentiate between mycosis and mycoses

    Mycosis is a fungal infection; mycoses is the plural, referring to multiple fungal infections.

  • What is a dermatophyte?

    A dermatophyte is a fungus that infects skin, hair, and nails causing superficial infections.

  • Where would a dermatophyte infection occur?

    Dermatophyte infections occur on skin, hair, and nails, often causing ringworm or athlete's foot.

  • What is a mycotoxin?

    Mycotoxins are toxic compounds produced by certain fungi that can cause illness in humans and animals.

  • Symptoms mycotoxins can cause

    Symptoms include neurological damage, immune suppression, and organ failure depending on the toxin.

  • Where do protists typically exist?

    Protists typically exist in aquatic environments or moist terrestrial habitats.

  • Can some protists be pathogenic?

    Yes, some protists are pathogenic and cause diseases like malaria and amoebic dysentery.

  • List the 3 main categories of protists

    1) Protozoa
    2) Algae
    3) Slime molds and water molds