Chapter # 9 Transport

Q.1 Choice the correct option (A,B,C,D) ?

1. Stomata close when guard cells:

(a) Loss water

(b) Gain chloride ions
(c) Become turgid

(d) Grain Potassium ions

2. Which of the following chamber has the thickest walls in human heart?

(a) Right atrium

(b) Left atrium

(c) Left ventricle

(d) Right ventricle

3. Plants form beneficial relationships with soil bacteria and fungi in order to:

(a) Avoid diseases

(b) Absorption of minerals
(c) Transpire more water

(d) All of these

4. Which ions are involved in opening and closing of stomata?

(a) Potassium ions

(b) Chloride ions

(c) Sodium ions

(d) Iodide ions

5. Which of the following protein takes part in blood clotting:

(a) Albumin           (b) Prothrombin           (c) Fibrinogen           (d) Fibrin

6. In the embryonic and foetal life, RBCs are produced in:

(a) Liver            (b) Ribs           (c) Spleen           (d) Liver and spleen

7. Exchange of materials between blood and surrounding tissues occurs in:

(a) Arteries           (b) Veins            (c) Capillaries            (d) All of these

8. ABO blood group system was discovered by:

(a) T.H Morgan

(b) Hans Krebs

(c) Winhelm Kuhne

(d) Karl Landsteiner

9. Valves to prevent the backflow of blood are found in the:

(a) Arteries          (b) Veins            (c) Capillaries           (d) All of the above

10. A patient with blood group A can be given the blood of donor who has:

(a) Blood group A or AB

(b) Blood group A or O

(c) Blood group A only

(d) Blood group O only

Q. 2 (Short Questions)

What are the functions of root?

Which are two major veins?

What is thalassaemia?

What is Angina pectoris? Write its symptoms.

What is meant by hypertension?

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