Human Respiratory System

Q.

Define residual volume of air

Q.

Why We Are Advised Not To Talk While Eating Food

Q.

Which of the following contracts during normal inspiration?

1. Diaphragm

2. Abdominal muscles

3. Internal intercostal muscles

4. External intercostal muscles

Q. The intermediate compound that is common for aerobic and anaerobic respiration is _______.

1. pyruvic acid
2. citric acid
3. lactic acid
4. alcohol

Q.

Which raw material is responsible for the release of molecular oxygen in photosynthesis ?

Q. Which of the following is not true with respect to respiratory volumes and capacity?

1. IC = TV + IRC
2. EC = TV + ERC
3. FRC = ERV + RV
4. VC = RV + ERV + TV + IRV

Q.

Where in the respiratory system can we find rings of cartilage?

1. Lungs

2. Trachea

3. Diaphragm

4. Alveoli

Q.

The diagram below represents the breakdown of glucose by various pathways. Choose the correct option.
.

1. (i) - In cytoplasm, (ii) – Energy, (iii) – Carbon dioxide, (iv) – Water, (v) – Lactic Acid, (vi) – Absence of oxygen,
   (vii) – In yeast, (viii) – Ethanol.

2. i) - In mitochodria, (ii) – Water, (iii) – Oxygen, (iv) – Carbon dioxide, (v) – Lactic Acid, (vi) – Absence of oxygen, (vii) – In cytoplasm, (viii) – Lactic Acid.

3. i) - In cytoplasm, (ii) – Water, (iii) – Carbon dioxide, (iv) – Energy, (v) – Lactic Acid, (vi) – Presence of oxygen, (vii) – In ameoba, (viii) – Pyruvate

4. i) - In human cells, (ii) – Energy, (iii) – Carbon dioxide, (iv) – Energy, (v) – Lactic Acid, (vi) – Absence of carbon dioxide, (vii) – In yeast, (viii) – Ethanol.

Q.

Haemoglobin is

1. Vitamin

2. Skin pigment

3. Blood carrier

4. Respiratory pigment

Q.

Which gas present in the air is essential for aerobic respiration? What is the role of oxygen during respiration?

Q.

Answer in one word:
Two ligamentous folds present in the larynx.

Q. What is the purpose of hair inside the nose?

1. To fight disease

2. They serve no purpose

3. To tickle the nose and cause sneezes

4. To prevent dust particles from entering the nasal cavity

Q.

Give one word for the following.

A membrane enveloping the lungs.

Q.

Match the following:

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Larynx}& \text{a. Air sacs}\\ \text{ii. Trachea}& \text{b. Lid of larynx}\\ \text{iii. Alveoli}& \text{c. Voice box}\\ \text{iv. Epiglottis}& \text{d. Wind pipe}\end{array}$

1. i) c, ii) d, iii) b, iv) e

2. i) d, ii) b, iii) a, iv) c

3. i) c, ii) d, iii) a, iv) b

4. i) a, ii) d, iii) c, iv) b

Q.

How do our lungs know which gas to inhale or exhale from a number of gases present in the atmosphere ?

Q. Choose the odd one out in each of the following groups of four items each:
Trachea, Bronchus, Alveolus, Diaphragm

Q. ______ separates the chest cavity from the abdominal cavity.

1. Diaphragm
2. Pharynx
3. Heart
4. Thorax

Q.

Which gas present in the air is essential for aerobic respiration? What is the role of oxygen during respiration?

Q.

Which gas present in the air is essential for aerobic respiration? What is the role of oxygen during respiration?

Q. Match the items in Column A with those in Column B.

Q. Which of the following statements is incorrect regarding the respiratory system ?

1. Each terminal bronchiole gives rise to a network of bronchi.
2. The alveoli are highly vascularised.
3. The lungs are covered by a double-layered membrane.
4. The pleural fluid reduces friction on the lung surface.

Q.

Choose the correct alternative from the options given below.

1. The Covering of lungs.

1. Perichondrium

2. Pleural membrane

3. Pericardium

4. Peritoneum

Q. What are the measures taken by you to reduce your stress?