Process of Respiration

Q.

The process by which oxygen is used to burn down food chemically and released energy in the body is known as?

Q.

What is the percentage of carbon dioxide in inhaled and exhaled air? [2 MARKS]

Q.

When we inhale, we take air into our lungs. what do we breathe out during exhalation? options A :carbon dioxide option B: Nitrogen option C:Oxygen option

D: a mixture of gases that has more carbon dioxide than inhaled air optionE: a and c

Q.

What is percentage of Various gases in exhaled and inhaled air .....

Q.

If an Athlete suffers from muscular cramps while running a race. How can we help him overcome the cramps?

Q.

What is the 2 difference between inhaled air and exhaled air?

Q.

What are facultative aerobes?

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

1. True
2. False

Q.

Write the difference between Inhalation and exhalation.

Q.

Explain how do we breathe? [5 MARKS]

Q.

The normal range of breathing rate per minute in an average adult at rest is:

1. 21–24
2. 15–18
3. 30–33
4. 9–12

Q.

During respiration exchange of gases take place in

1. trachea and larynx

2. alveoli of lungs

3. alveoli and throat

4. throat and larynx

Q.

Question 9
The mountaineers carry oxygen with them because:
(a) At an altitude of more than 5 km there is no air.
(b) The amount of air available to a person is less than that available on the ground.
(c) The temperature of air is higher than that on the ground.
(d) The pressure of air is higher than that on the ground.

Q.

Breathing is a physical process.

1. True

2. False

Q.

The percentage of oxygen in inhaled air is 21%.

1. 10%

2. 21%

Q.

The figure shown above shows a simple diagram of gas exchange occurring in the alveolus. If gas A goes “out” and gas B goes “ in” with respect to the blood as shown in the diagram, identify gases A and B.

1. A – oxygen, B- carbon dioxide

2. A –carbon dioxide, B- oxygen

3. A – carbon dioxide, B- nitrogen

4. A – water, B- carbon dioxide

Q.

What is location and funation of trachea?

Q. How do our lungs separate oxygen and other gases?
What is so special about our lungs that they seperate oxygen and other gases?

Q.

Carbon dioxide moves out of blood and into the alveolus while oxygen moves into the blood from the alveolus. Why does it happen so?

1. The concentration of oxygen and carbon dioxide is higher in alveolus compared to incoming blood.

2. The concentration of oxygen is lower and carbon dioxide is higher in alveolus compared to incoming blood.

3. The concentration of oxygen is higher and carbon dioxide is lower in alveolus compared to incoming blood.

4. The concentration of oxygen and carbon dioxide is lower in alveolus compared to incoming blood.

Q.

What is the function of ribs in respiration? [3 MARKS]

Q. Diffusion is the movement of particles from a region of concentration to the region of concentration.

1. lower
2. same
3. higher
4. constant

Q. What is path of air that travels in respiratory system

Q.

Observe the Figure carefully and answer the following questions.

(A) (B) Fig. \( 10.2 \)

Q.

Match the following organs to their functions regarding respiration. Choose the option that matches correctly.

$\begin{array}{cc}\text{I.Heart and blood vessels}& \text{a) Gas exchange}\\ \text{II.Lungs}& \text{b) Transport of gases}\\ \text{III.Muscles}& \text{c) Breakdown of glucose to obtain energy}\end{array}$

1. I – a, II – b, III - c

2. I – b, II – c, III - a

3. I – c, II – b, III - a

4. I – b, II – a, III - c

Q. The process of breathing involves two stages:

1. Ingestion and Egestion
2. Inhalation and Exhalation
3. Ventilation and Egestion
4. Exhalation and Ventilation

Q. What is the movement of the lungs when we breathe?and why do we breathe?

Q. ________ are richly supplied by blood capillaries.

1. Alveoli
2. Nostril
3. Bronchi
4. Trachea

Q.

The transportion of oxygen to all cells in the body from the lungs is undertaken by the

1. Blood

2. Muscles

3. Liver

4. Nerves

Q.

Explain the following observations very briefly.

(a) A firki does not rotate in a closed area.

(b) The arrow of weathercock points towards a particular direction at a particular moment.

(c) An empty glass, in fact, is not empty.

(d) Breathing through the mouth may harm you.

Q. Which among the following is the correct statement for breathing?

1. Physical process
2. Takes place inside the cells
3. Cannot be controlled
4. Breakdown of glucose