Match the statements of Column A with those in Column B. Column A Column B 1. Heart (a) A living pump 2. Food and oxygen (b) Can poison an organism 3. Waste products (c) Movement of materials 4. Carrier of oxygen (d) Materials needed by every living thing 5. Circulation (e) Pipes for transport in man 6. Arteries and veins (f) Red blood cells

1 -(a) In humans, the heart is present in the chest cavity. It pumps blood through the arteries and veins throughout our body. 2 -(d) Living organisms need the energy to survive. It comes from the food that they eat. The glucose present in the food particles is broken down in the presence of oxygen to release energy. This process is known as respiration. 3 -(b) Living organisms remove metabolic waste materials from the body by a process called excretion. In humans, kidneys are used to remove urea, excess of water, few salts and proteins in the form of urine. Accumulation of poisonous waste materials in the body can be fatal for living organisms. 4 -(f) The red blood cells help in carrying oxygen from the lungs to the body tissues. They have a pigment called haemoglobin, which binds to the oxygen molecules and help in their transport. 5 -(c) The movement of materials within the human body takes place with the help of the circulatory system. It consists of blood, blood vessels and the heart. Blood is made up of red blood cells, white blood cells, plasma and platelets. 6 -(e) The circulation of blood in humans takes place with the help of tube-like structures called veins and arteries. Veins generally carry carbon dioxide-rich from different parts of the body to the heart. Arteries carry oxygen-rich blood from the heart to different parts of the body. Column A Column B 1. Heart (a) A living pump 2. Food and oxygen (d) Materials needed by every living thing 3. Waste products (b) Can poison an organism 4. Carrier of oxygen (f) Red blood cells 5. Circulation (c) Movement of materials 6. Arteries and veins (e) Pipes for transport in man

E M B I B E

Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

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The liquid part of blood is called . (Plasma/Platelets)

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Important Questions on Transportation in Plants and Animals

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

The substance in red blood cells that links up with oxygen is called _____. (haemoglobin/myoglobin)

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

Getting rid of waste materials in living beings is called _____.

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

Most liquid wastes are excreted through the _____. (kidneys/lungs)

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

In a man, carbon dioxide is excreted through _____. (lungs/skin)

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

Kidneys are connected to the urinary bladder by long tubes called _____.

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q II

Artificial kidney machines work on the principle of _____.

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Learning Elementary Science for Class 7>Chapter 11 - Transportation in Plants and Animals>EXERCISES>Q III

Match the statements of Column A with those in Column B.

Column A	Column B
1. Heart	(a) A living pump
2. Food and oxygen	(b) Can poison an organism
3. Waste products	(c) Movement of materials
4. Carrier of oxygen	(d) Materials needed by every living thing
5. Circulation	(e) Pipes for transport in man
6. Arteries and veins	(f) Red blood cells