Transportation in Animals and Plants


Why is blood needed by all the parts of a body?


Blood is needed by all the parts because it contains the digested food and oxygen in it. It supplies the oxygen and digested food to various parts of the body to provide essential energy to them which helps the body to perform various functions


Transportation in Animals and Plants

Q 1.

What are the components of blood?

Q 2.

Describe the function of the heart.

Q 3.

Why is it necessary to excrete waste products?

Q 4.

Choose the correct options:
(a) In plants, water is transported through
(i) Xylem (ii) Phloem (iii) Stomata (iv) Root hair
(b) Water absorption through roots can be increased by keeping the plants
(i) In the shade (ii) in dim light (iii) under the fan (iv) covered with a polythene bag

Q 5.

Fill in the blanks :
(i) The blood from the heart is transported to all parts of the body by the _____________
(ii) Haemoglobin is present in ___________ cells.
(iii) Arteries and veins are joined by a network of ___________ .
(iv) The rhythmic expansion and contraction of the heart is called ___________
(v) The main excretory product in human beings is ___________
(vi) Sweat contains water and .
(vii) Kidneys eliminate the waste materials in the liquid form called .
(viii) Water reaches great heights in the trees because of suction pull caused by .

Q 6.

What makes the blood look red?

Q 7.

Why is transport of materials necessary in a plant or an animal? Explain.

Q 8.

Draw a diagram of the human excretory system and label the various parts.

Q 9.

Does transpiration serve any useful function in plants? Explain.

Q 10.

Why is blood needed by all the parts of a body?

Q 11.

What will happen if there are no platelets in the blood?

Q 12.

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

Q 13.

What are stomata? Give two junctions of stomata.