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Biological Clas...

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  • Question 1
    4 / -1

    Which one of the following is an incorrect statement regarding mycoplasma?

  • Question 2
    4 / -1

    Select the pair that consists of plant or animal bacterial diseases.

  • Question 3
    4 / -1

    Bacteria are grouped under four categories according to their shape. Study the given figures and select the correct option regarding this.

  • Question 4
    4 / -1

    Read the following statements regarding methanogens and select the correct option.
    (i) They are included in the group Archaebacteria.
    (ii) They are responsible for the production of biogas in gobar gas plants.
    (iii) They live in hot sulphur springs.
    (iv) They are strictly anaerobic.

  • Question 5
    4 / -1

    Given figure is of filamentous blue green alga Nostoc Identify the parts marked as A and B and select the correct option.

  • Question 6
    4 / -1

    Which of the following statements is incorrect regarding the structure of a typical bacterial cell?

  • Question 7
    4 / -1

    ______ is the most common method of reproduction in bacteria.

  • Question 8
    4 / -1

    Cyanobacteria are classified under which of the following kingdoms?

  • Question 9
    4 / -1

    _____ bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia, and use the released energy for ATP production. They play an important role in recycling of nutrients (N, P, Fe, S etc.).

  • Question 10
    4 / -1

    Read the following statements and select the correct option.
    Statement 1: Almost all bacteria possess lipoproteinaceous plasma membrane.
    Statement 2: The plasma membrane of archaebacteria as well as eubacteria have same type of lipids.

  • Question 11
    4 / -1

    _____ are important decomposers that cause decay and decomposition of dead bodies of plants and animals.

  • Question 12
    4 / -1

    Cyanobacteria are used in agricultural fields for improvement because they cause

  • Question 13
    4 / -1

    Select the correct statement regarding heterocysts.

  • Question 14
    4 / -1

    In 5-kingdom classification system, the kingdom that includes the blue-green algae, nitrogen-fixing bacteria and methanogenic archaebacteria, is

  • Question 15
    4 / -1

    Which of the following statements is incorrect?

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