SolveItClass 10 · NCERT

NCERT Solutions · Class 10 Science Life Processes

13 questions · 13 still being checked

EXERCISES 1–13

  1. Exercise 1

    The kidneys in human beings are a part of the system for
    (a)
    nutrition. (c) excretion.
    (b)
    respiration. (d) transportation.
    NCERT’s answer
    (c)

    Working being prepared

  2. Exercise 2

    The xylem in plants are responsible for
    (a)
    transport of water. (c) transport of amino acids.
    (b)
    transport of food. (d) transport of oxygen.
    NCERT’s answer
    (a)

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  3. Exercise 3

    The autotrophic mode of nutrition requires
    (a)
    carbon dioxide and water. (c) sunlight.
    (b)
    chlorophyll. (d) all of the above.
    NCERT’s answer
    (d)

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  4. Exercise 4

    The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
    (a)
    cytoplasm. (c) chloroplast.
    (b)
    mitochondria. (d) nucleus.
    NCERT’s answer
    (b)

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  5. Exercise 5

    How are fats digested in our bodies? Where does this process take place?

    Solution being prepared

  6. Exercise 6

    What is the role of saliva in the digestion of food?

    Solution being prepared

  7. Exercise 7

    What are the necessary conditions for autotrophic nutrition and what are its by-products?

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  8. Exercise 8

    What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.

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  9. Exercise 9

    How are the alveoli designed to maximise the exchange of gases?

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  10. Exercise 10

    What would be the consequences of a deficiency of haemoglobin in our bodies?

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  11. Exercise 11

    Describe double circulation of blood in human beings. Why is it necessary?

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  12. Exercise 12

    What are the differences between the transport of materials in xylem and phloem?

    Solution being prepared

  13. Exercise 13

    Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.

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