Life Processes

  • Question 13
    CBSEENSC10011713

    What are the modes of nutrition other than autotrophic nutrition?

    Solution
    The modes of nutrition other than autotrophic nutrition are —Heterotrophic, saprophytic, parasitic and holozoic.
    Question 14
    CBSEENSC10011714

    What are the raw materials for photosynthesis?

    Solution
    The raw materials for photosynthesis are
    (i) CO
    2 (ii) water (iii) light (iv) chlorophyll.
    Question 15
    CBSEENSC10011715

    What is the primary source of energy for all living beings?

    Solution
    Sun.
    Question 16
    CBSEENSC10011716

    Are there organisms that do not require water for photosynthesis?

    Solution
    The green sulphur bacteria use H2S (Hydrogen sulphide) instead of water.

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