Ncert solutions science class 7 Solutions for Chapter 11 transportation in animals and plants

The rhythmic expansion and contraction of the heart is called _____________ .

Kidneys eliminate the waste materials in the liquid form called _________ .

The main excretory product in human beings is ___________ .

The blood from the heart is transported to all parts of the body by the _______.

(arteries/veins)

Arteries and veins are joined by a network of ____________ .

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

Q2) 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 ___________.

Q3) Choose the correct option:

(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

Q4) Why is the transport of materials necessary in a plant or in an animal? Explain.

Q5) What will happen if there are no platelets in the blood?

Q6) What are stomata? Give two functions of stomata.

Q7) Does transpiration serve any useful function in the plants? Explain.

Q8) What are the components of blood?

Q9) Why is blood needed by all the parts of a body?

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

What makes the blood look red?

Q10) What makes the blood look red?

Describe the function of the heart.

Q11) Describe the function of the heart.

Q12) Why is it necessary to excrete waste products?

Why is it necessary to excrete waste products?

Q13) Draw a diagram of the human excretory system and label the various parts.

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