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Class 7 Transportation in Animals And Plants

Last updated on August 30th, 2023 at 01:01 am

Class 7 Science Chapter 11 Ncert solutions

Class 7 Science Chapter 11 Transportation in Animals And Plants Question and Answers / Notes


Q1 :Match structures given in Column I with functions given in Column II.

Column I  Column II
(i) Stomata (a) Absorption of water
(ii) Xylem (b) Transpiration
(iv) Phloem (c) Transport of food
(iii) Root hairs
(d) Transport of water
  (e) Synthesis of carbohydrates

Answers – I – Transpiration , ii – Transport of water , iii – Transport of food , iv – Transport of water

Q2 :Fill in the blanks.

  1. The blood from the heart is transported to all parts of the body by the______.[arteries]
  2. Haemoglobin is present in ______ cells. [ red blood]
  3. Arteries and veins are joined by a network of ______.[capillaries]
  4. The rhythmic expansion and contraction of the heart is called ___ _ _.[heart beat]
  5. The main excretory product in human beings is ______.[urea]
  6. Sweat contains water and ______.[salts]
  7. Kidneys eliminate the waste materials in the liquid form called ______.[urine]
  8. Water reaches great heights in the trees because of suction pull caused by ______.[transpiration]

Q3 :Choose the correct option:

(a) In plants, water is transported through

  1. xylem
  2. phloem
  3. stomata
  4. root hair

(b) Water absorption through roots can be increased by keeping the plants

  1. in the shade
  2. in dim light
  3. under the fan
  4. covered with a polythene bag


Q4 :Why is transport of materials necessary in a plant or in an animal? Explain.
Both plants and animals require a regular supply of nutrients and oxygen for emitting energy through respiration.Through transpiration, nutrients and oxygen are made available to all parts of the body. It is impossible for the body to survive if it does not transport nutrients and oxygen.


Q5 :What will happen if there are no platelets in the blood?
It is impossible for the blood to clot without platelets. Platelets are responsible for clotting. As a result, they release chemicals that cause the blood to clot. Clotting agents form a clot that prevents bleeding.

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