Bacteria General Study
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Questions and Answers

What is the purpose of the toxoids in the vaccines?

  • To provide immunity against future attacks
  • To weaken the bacteria
  • To kill the bacteria
  • To stimulate the production of antibodies (correct)
  • What is the role of nitrogen-fixing bacteria in the soil?

  • To provide oxygen to plants
  • To break down organic matter
  • To produce toxins that kill plants
  • To convert atmospheric nitrogen into amino acids (correct)
  • What is the main difference between BCG and TAB vaccines?

  • One is used for bacterial infections and the other for viral infections
  • One is used for tuberculosis and the other for typhoid (correct)
  • One is used for typhoid and the other for diphtheria
  • One is made from living bacteria and the other from dead bacteria
  • What is the limitation of plants in terms of nitrogen?

    <p>They cannot make use of nitrogen in the atmosphere</p> Signup and view all the answers

    What is the name of the bacteria that lives in small nodules on the roots of legume plants?

    <p>Special category of soil bacteria</p> Signup and view all the answers

    What is the cellular structure of bacteria?

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

    What can some bacteria obtain from animal wastes?

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

    What is the process by which some bacteria obtain nitrates?

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

    What is the economic importance of bacteria?

    <p>They are used in food production</p> Signup and view all the answers

    What is the general characteristic of bacteria?

    <p>They are found everywhere</p> Signup and view all the answers

    What type of organisms are referred to in the passage?

    <p>F bacteria</p> Signup and view all the answers

    Where do some bacteria obtain nitrates from?

    <p>Wastes of animals</p> Signup and view all the answers

    What is unique about the cell structure of bacteria?

    <p>They are single-valved</p> Signup and view all the answers

    What is the general classification of bacteria?

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

    What is the study of the biology of these organisms called?

    <p>CUNCTII BIOLOGY</p> Signup and view all the answers

    What is the role of high concentration of sugar and salt in jams and pickles?

    <p>To prevent spoilage</p> Signup and view all the answers

    What is the purpose of adding preservatives like sodium benzoate to tinned foods and squashes?

    <p>To prevent spoilage</p> Signup and view all the answers

    What is the name of the disease caused by the bacterium Bacillus anthracis?

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

    What is the name of the bacterial disease that affects the lungs of cattle?

    <p>Bovine tuberculosis</p> Signup and view all the answers

    What is the shape of the bacterium Vibrio?

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

    What are bioweapons capable of doing?

    <p>Causing widespread death</p> Signup and view all the answers

    What method is used to preserve vegetables and fruits?

    <p>Chilling in cold storage</p> Signup and view all the answers

    What is the primary characteristic of bacteria?

    <p>They are variously shaped</p> Signup and view all the answers

    What is the purpose of adding bacteria to certain foods?

    <p>To prevent spoilage</p> Signup and view all the answers

    What is the effect of bacteria on certain animals?

    <p>They can be both beneficial and harmful</p> Signup and view all the answers

    What is the purpose of antibiotics in the treatment of bacterial diseases?

    <p>To kill bacteria</p> Signup and view all the answers

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