During heavy exercise the breathing rate of a person slows down.

True

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False

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Solution

The correct option is B False
Aerobic respiration is the process during which food is broken down in the presence of oxygen to release energy. During heavy exercise a person needs more energy and so more oxygen is taken for respiration to take place. Hence the breathing rate of the person increases.

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Similar questions

Question 7 (i)
Mark ‘T’ if the statement is true and ‘F’ if it is false:
(i) During heavy exercise, the breathing rate of a person slows down.

Mark ‘T’ if the statement is true and ‘F’ if it is false:

(i) During heavy exercise the breathing rate of a person slows down. (T/F)

(ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F)

(iii) Frogs breathe through their skins as well as their lungs. (T/F)

(iv) The fishes have lungs for respiration. (T/F)

(v) The size of the chest cavity increases during inhalation. (T/F)

Tick the correct answer:

(a) In cockroaches, air enters the body through

(i) lungs

(iii) spiracles

(iv) skin

(b) During heavy exercise, we get cramps in the legs due to the accumulation of

(i) carbon dioxide

(iv) water

(i) 9-12

(ii) 15-18

(iii) 21-24

(iv) 30-33

(d) During exhalation, the ribs

(i) move outwards

(ii) move downwards

(iii) move upwards

(iv) do not move at all

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