#### Transportation in Plants Circulation in Animals Book Back Questions

10th Standard EM

Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 30
5 x 1 = 5
1. Active transport involves

(a)

movement of molecules from lower to higher concentration

(b)

expenditure of energy

(c)

(d)

all of the above

2. Which is the sequence of correct blood flow

(a)

ventricle - atrium - vein - arteries

(b)

atrium - ventricle - veins - arteries

(c)

atrium - ventricle - arteries - vein

(d)

ventricles - vein - atrium - arteries

3. A patient with blood group O was injured in an accident and has blood loss. Which blood group the doctor should effectively use for transfusion in this condition?

(a)

O group

(b)

AB group

(c)

A or B group

(d)

all blood group

4. ‘Heart of heart’ is called

(a)

SA node

(b)

AV node

(c)

Purkinje fibres

(d)

Bundle of His

5. Which one of the following regarding blood composition is correct

(a)

Plasma - Blood + Lymphocyte

(b)

Serum - Blood + Fibrinogen

(c)

Lymph - Plasma + RBC + WBC

(d)

Blood - Plasma + RBC+ WBC +Platelets

6. 4 x 1 = 4
7. __________ involves evaporative loss of water from aerial parts.

()

Transpiration

8. Structures in roots that help to absorb water are __________.

()

root hairs

9. Normal blood pressure is __________.

()

$\cfrac { 120 }{ 80 } mmHg$

10. The normal human heartbeat rate is about ____________ time per minute.

()

72

11. 3 x 2 = 6
12. What is the shape of RBC in human blood?

13. Which kind of cells are found in the lymph?

14. Name the heart valve associated with the major arteries leaving the ventricles.

15. 2 x 4 = 8
16. Who discovered Rh factor? Why was it named so?

17. How are arteries and veins structurally different from one another?

18. 1 x 7 = 7
19. How does the pulmonary artery and pulmonary vein differ in their function when compared to a normal artery and vein?