Steps in the Process of Respiration

Q.

How does the exchange of gases occur in the tissues?

Q.

What is oxygenated blood?

Q. The size of the chest cavity increases during inhalation.

1. True
2. False

Q.

Explain external and internal breathing

Q.

Write a note on respiration.

Q.

Which of the following is a common passage for both food and air?

1. Larynx

2. Pharynx

3. Esophagus

4. Trachea

Q.

What is the percentage of carbon dioxide present in exhaled air?

1. 16.4%

2. 21%

3. 0.04%

4. 4.4%

Q.

Exhaled air has more percentage of CO₂ than inhaled air.

1. True
2. False

Q.

How are respiration and burning similar?

Q.

Does glucose react with oxygen during cellular respiration?

Q.

Which of the following help in the transport of oxygen to all parts of the body?

1. Nerves

2. Blood

3. Muscles

4. Liver

Q.

Which among the following is a function of blood?

1. Delivering oxygen to all parts of the body.

2. Delivering nutrients to all parts of the body.

3. Delivering carbon dioxide to the lungs.

4. Delivering electric messages to all parts of the body.

Q. Pulmonary respiration is

1. External
2. Internal
3. Cellular
4. All of the above

Q. Exchange of gases between alveoli and blood in pulmonary capillaries is known as

1. External respiration
2. Cellular respiration
3. None of the above
4. Internal respiration

Q.

The percentage of oxygen in the inhaled air is ___.

1. 19%

2. 12%

3. 21%

4. 16%

Q. The respiratory pathway is an amphibolic pathway Discuss.

Q.

When we breathe oxygen in, we exhale CO₂ within seconds. Is the CO₂ we breathe out the by-product of the respiration which happened with the oxygen we just breathed in?

Q.

Which is not correct about what lungs excrete?

1. Carbon dioxide

2. Energy

3. None of these.

4. Water

Q. Internal respiration consists of _____________.

1. Breathing
2. Cellular respiration
3. Anaerobic respiration
4. All of the above

Q. External respiration occurs in

1. Lungs
2. Tissue cells
3. Nose
4. Mitochondria

Q. Exchange of gases between blood and tissue cells in systematic capillaries is called as

1. None of the above
2. Internal process
3. Cellular respiration
4. External process

Q.

What is cellular respiration?

1. breakdown of the food in the cells with the release of energy

2. involves transportation of gases by the blood to different body parts

3. is the exchange of gases in the lung

4. Intake of gases through the nasal cavity

Q. Internal respiration implies

1. Oxygen uptake by tissue cells
2. All of the above
3. Tissue oxidation
4. Cabon dioxide elimination from tissue cells

Q. Gas exchange across the respiratory membrane in metabolizing tissue is called as

1. Internal respiration
2. External respiration
3. Breathing
4. None of the above

Q. When the exchange of gases occurs between blood and tissue fluid, it is called?

1. External respiration
2. Internal or tissue respiration
3. Cellular respiration
4. All the above

Q.

Blood is the main fluid for transportation. It is a fluid connective tissue. What do you think it might consist of?

1. Plasma
2. Lymph
3. Blood Corpuscles
4. Both (a) and (c)

Q. Define an organ. Name any six organs of the human body.

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 and carbon dioxide is lower in alveolus compared to incoming blood.

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

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

Q. External respiration is

1. Gaseous exchange between organism and external environment
2. Respiration in skin cells
3. Both B and C
4. Gaseous exchange between cells and tissue fluid

Q. The site of external respiration in lungs is

1. Trachea
2. Bronchus
3. All of the above
4. Alveoli