Transport of Substances in Plants & Animals Worksheet-1

Transport of Substances in Plants & Animals Worksheet-1

1. Leaves lose water through transpiration which results in a pressure drop causing more water to be sucked up. This is called transpiration pull.

Which of the following leaves is likely to cause least transpiration pull?

(a)

(b)

(c)

(d)

2. Take a plant with thick stem. Remove the phloem tissue as shown in the figure. Observe the stem after a few days. The stem shows swelling in the upper portion. This is due to

(a) Upward movement of food getting blocked

(b) Downward movement of food getting blocked

(c) Upward movement of water getting blocked

(d) Downward movement of water getting blocked

3. Tiny, irregular, square or star shaped structure which have no nuclei and play a major role in clotting of blood are called

(a) RBCs            (b) WBCs           (c) Platelets       (d) Antibodies

4. Which is the correct order of transport of water from the soil to the leaf of a plant?

(a) Root, root hair, phloem, leaf

(b) Root hair, root, xylem, leaf

(c) Root, root hair, leaf, phloem

(d) Root, xylem, phloem, leaf

5. Statement 1: The doctor uses the urine test to help diagnose some diseases in the body.

Statement 2: An examination of urine tells a lot about whether various organs in the body are functioning normally or not.

(a) Both statement 1 and statement 2 are true and statement 2 is the correct explanation of statement 1

(b) Both statement 1 and statement 2 are true but statement 2 is not the correct explanation of statement 1

(c) Statement 1 is true but statement 2 is false

(d) Statement 1 is false but statement 2 is true.

6. Which of the following statements on transport of nutrients and gases are true?

(a) Unicellular organisms transport materials by diffusion and streaming movements of the cytoplasm

(b) Plants transport water and minerals through xylem vessels. Prepared food is transported by phloem vessels from the leaves to the different parts of the plant

(c) In man, the transport of nutrients, gases and necessary chemicals is done by blood which is pumped by the heart and circulated in the blood vessels

(d) All of these

7. Their main job is to fight against diseases by destroying harmful bacteria and other foreign materials. The statement holds true for which type of blood cells?

(a) Red blood cells

(b) White blood cells

(c) Platelets

(d) Both Red blood cells & White blood cells

8. Read the following passage carefully and fill up the blank spaces with correct option. Pulmonary ______carries _____rich blood from the heart to the lungs and pulmonary ____carries  _____ rich blood from the lungs to the heart.

(a) Vein, carbon dioxide, artery, oxygen

(b) Vein, oxygen, artery, carbon dioxide

(c) Artery, carbon dioxide, vein, oxygen

(d) Artery, oxygen, vein, carbon dioxide.

9. Which of the following carry blood towards heart?

(a) Arteries                                    (b) Veins

(c) Capillaries                               (d) Aorta

10. The rhythmic contraction and relaxation of the heart can be felt as

(a) Pulse                                         (b) Heartbeat

(c) Systole-diastole                      (d) All of these

11. Transportation of substances occurs through

(a) Blood vessels                           (b) Phloem

(c) Xylem                                       (d) All of these

12. Ascent of Sap refers to

(a) Transportation of food through phloem

(b) Transportation of water through xylem

(c) Transportation of water and minerals through xylem

(d) All of these

Answer Key:

1. (a)
2. (b)
3. (c)
4. (b)
5. (a)
6. (d)
7. (b)
8. (c)
9. (b)
10. (b)
11. (d)
12. (c)