Zoology - Body Fluids and Circulation Three Marks Questions

11th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. Which of these functions could or could not be carried out by a red blood cell? Briefly justify your answer.
    a. Protein synthesis
    b. Cell division
    c. Lipid synthesis
    d. Active transport

    (a)

    Protein synthesis

    (b)

    Cell division

    (c)

    Lipid synthesis

    (d)

    Active transport

  2. Distinguish between arteries and veins.

  3. Distinguish between open and closed circulation

  4. What might be the effect on a person whose diet has less iron content?

  5. What is lymph? Write its function.

  6. What are the heart sounds? When and how are these sounds produced?

  7. Why there are no blood capillaries in the cornea of the eye and cartilage? How are these regions supplied with the required nutrients?

  8. Suggest why arteries close to the heart have more elastic fibres in their walls than arteries further away from the heart?

  9. When blood volume drops down abruptly, what happens to the stroke volume? State whether it increases or decreases?

  10. Write short note on platelets.

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