Bacterial Shapes: Identify the Three Basic Forms
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Questions and Answers

What is the shape of bacteria classified as cocci?

  • Rod-shaped
  • Triangular-shaped
  • Spiral-shaped
  • Spherical-shaped (correct)
  • Which type of bacteria is spiral-shaped?

  • Bacilli
  • Cocci
  • Tuberculosis
  • Spirilla (correct)
  • What is the shape of bacteria classified as bacilli?

  • Rod-shaped (correct)
  • Spherical-shaped
  • Cylindrical-shaped
  • Spiral-shaped
  • What is the plural form of bacillus?

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

    What is the term for spherical-shaped bacteria?

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

    What characteristic is unique to spirillum bacteria among the three basic shapes?

    <p>Having a spiral shape</p> Signup and view all the answers

    Which of the following bacteria shapes is most conducive to movement?

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

    What is the primary way in which cocci, bacilli, and spirillum differ?

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

    Which of the following statements is true about the classification of bacteria based on shape?

    <p>Shape is the sole criterion for classifying bacteria</p> Signup and view all the answers

    What is the advantage of having a spherical shape for bacteria classified as cocci?

    <p>Greater resistance to environmental stress</p> Signup and view all the answers

    Study Notes

    Bacterial Shapes and Classification

    • Cocci are spherical-shaped bacteria, often appearing in clusters or chains.
    • Spirilla refers to spiral-shaped bacteria, known for their twisted or helical structure.
    • Bacilli are rod-shaped bacteria, which can vary in length and thickness.
    • The plural form of bacillus is bacilli.
    • The term for spherical-shaped bacteria is cocci.
    • Spirillum bacteria possess a unique characteristic of having flagella at both ends, aiding in their movement among other shapes.
    • The spiral shape of bacteria is most conducive to movement, allowing for better motility in fluid environments.
    • Cocci, bacilli, and spirillum differ primarily in their shapes and arrangements, influencing their classification.
    • Bacterial classification based on shape is important for identification and understanding of bacterial roles in various environments.
    • The spherical shape of cocci provides advantages such as resilience to pressure and the ability to maintain structural integrity during nutrient absorption.

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    Description

    Learn about the three fundamental shapes of bacteria, including spherical, rod-shaped, and spiral-shaped forms. Test your knowledge of microbiology and identify the correct terms for each shape.

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