Inhalation and Exhalation

Q. Distinguish between Inspiration and Expiration.

Q.

What is the function of the respiratory system?

Q.

How is respiration different from breathing?

Q.

Do Lungs have positive or negative pressure?

Q.

The process of gaseous exchange in lungs between air and blood is called

1. Respiration

2. Transpiration

3. External respiration

4. Internal respiration

Q. Red blood cells help in transporting oxygen to all parts of the human body.

1. True
2. False

Q. The concentration of oxygen and carbon dioxide in deoxygenated blood is-

1. Oxygen - 21$\%$ and Carbon dioxide - 0.04$\%$
2. Oxygen - 80$\%$ and Carbon dioxide - 20$\%$
3. Oxygen - 16$\%$ and Carbon dioxide - 4$\%$
4. Oxygen - 29$\%$ and Carbon dioxide - 71$\%$

Q.

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

The size of the chest cavity increases during inhalation.

1. True
2. False

Q.

Why is the circulatory system important for respiration?

Q.

The air passing through the nostrils in humans is filtered by:

1. Fine hairs, mucus and innermost surface of nostrils

2. Fine hairs and innermost surface of nostrils

3. Mucus and innermost surface of nostrils

4. Mucus and fine hairs in the nostrils

Q.

How is oxygen transported in human beings ?

Q.

The maximum affinity of haemoglobin is with

1. Oxygen

2. Ammonia

3. Carbon monoxide

4. Carbon dioxide

Q.

Question 75
Explain the process of breathing in man.

Q. How is oxygen and carbon dioxide transported in human beings?

Q.

When does the actual exchange of gases in a mammal take place?

Q.

Exchange of gases between the blood and the tissues of the body is called

1. External respiration

2. Internal respiration

3. Counter-current exchange

4. Cellular respiration

Q.

Gas exchange in animals always involves

1. cellular respiration

2. breathing movements

3. neural control of exchange

4. diffusion across membrane

Q.

What is hemoglobin? what role does it play?

Q.

Respiration is a vital function of the body. Justify this statement.

Q.

What is the function of haemoglobin present in red blood corpuscles?

Q.

What is the function of hemoglobin present in red blood corpuscles

Q.

The following materials required for the experiment to show that CO₂ is produced during respiration by use of KOH was collected, but one material is short. Tick the material which is short

Materials collected. (1) Germinating gram seeds, (2) Conical flask, (3) Small test tube, (4) Thread, (5) One-holed cork, (6) Bent glass tube, (7) Beaker, (8) Water.

1. Thread

2. Conical flask

3. KOH solution

4. Germinating seeds.

Q. a) What are the methods used by plants to get rid of their waste products?​ ​

Q. Which is the correct sequence of air passage during inhalation?

1. Nostrils -> Pharynx -> Larynx -> Alveoli
2. Trachea -> Nostrils -> Larynx -> Lungs
3. Nostril -> Pharynx -> Larynx -> Trachea -> Alveoli
4. Nostril -> Trachea -> Pharynx -> Larynx -> Alveoli

Q.

Which life process helps in release of energy? and which gas is inhaled into our body during breathing?

Q.

How is oxygen transported in human beings?

Q. Which is the correct sequence of air passage during inhalation?

1. $Nostrils\to pharynx\to larynx\to trachea\to alveoli$
2. $Larynx\to nostrils\to pharynx\to lungs$
3. $Nasalpassage\to trachea\to pharynx\to larynx\to alveoli$
4. $Nostrils\to larynx\to pharynx\to trachea\to lungs$

Q.

Oxygen is carried by

1. Leucocytes

2. Erythrocytes

3. Platelets

4. None of these

Q.

Exchange of gases between the blood and the tissues of the body is called

1. External respiration

2. Internal respiration

3. Cellular respiration

4. Counter-current exchange

Q.

"Respiration is a vital function" Justify.