Tuesday 5 September 2017

CBSE Class 10 - Biology - Life Processes (TRANSPORTATION and EXCRETION) - Assignment Sheet (#cbseNotes)

TRANSPORTATION & EXCRETION (Biology - Life Processes) - Assignment Sheet

CBSE Class 10 - Biology - Life Processes (TRANSPORTATION and EXCRETION) - Assignment Sheet (#cbseNotes)

1. Name any 5 substances transported by human blood.

2. Describe briefly the composition of blood.

3. Write the functions of the following :
a) Red Blood Cells
b) White Blood Cells
c) Blood Platelets
d) Plasma
e) Lymph
f) Bicuspid and Tricuspid valves
g) Pericardial Fluid

4. Where is the heart located in human body? Why do we need a pumping organ?

5. Draw a well-labeled diagram of the cross section of human heart.

6. Give reasons:
a) RBCs are red in colour.

b) WBCs are called soldiers of the human body.

c) Separation of oxygenated and deoxygenated blood is needed in higher animals.

d) Ventricles have thicker muscular walls than atria.

7. Write a short note on the following:
a) Circulation in fishes

b) Circulation in reptiles and amphibians

8. What is double-circulation? What is the advantage of such type of circulation?

9. Show through a diagram, the schematic representation of transport and exchange of carbon dioxide and oxygen.

10. Write a short note on blood pressure.

11. Name the following:
a) the blood vessel which brings oxygenated blood to the heart

b) the blood vessel that distributes blood to all body parts

c) the enucleated cell in human blood

d) special muscles attached to the heart

e) largest artery of human body

12. Define cardiac cycle.

13. Due to developmental abnormality, the wall of left ventricle of an infant’s heart is thin as that of right ventricle. What will be its effect on blood circulation?

14. Explain in brief how water is transported from roots to leaves, both in short height plants and tall height trees?

15. How is material like sucrose transported through phloem?

16. Name some of the plant waste products.

17. How is urine produced?

CBSE Class 10 - Biology - Life Processes (TRANSPORTATION and EXCRETION) - Assignment Sheet (#cbseNotes)

18. Draw well-labelled diagrams of the following:
a) Excretory system of human beings
b) Structure of nephron

19. How is dialysis different from the function of natural kidney?


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