Respiratory System Very Short Answer Biology Class-9 ICSE Selina Publishers Solutions Chapter-14. Step By Step ICSE Selina Concise Solutions of Chapter-14 Respiratory System with Exercise-14 including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.
Respiratory System Exe-14 Very Short Answer Biology Class-9 ICSE Concise Selina Publishers
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Biology |
| Class | 9th |
| Chapter-14 | The Respiratory System |
| Book Name | Concise |
| Topics | Solution of B. Very Short Answer Type |
| Academic Session | 2023-2024 |
B. Very Short Answer Type
Respiratory System Class-9 Biology Concise Solutions
Page 156
Question 1.
Name the following :
(a) The energy currency of the cell.
(b) The compound formed by the combination of oxygen and haemoglobin.
(c) The common passage of Oesophagus and Trachea.
(d) The muscles found between the ribs which can change the size of the chest cavity lengthwise.
(e) The compound formed by the combination of haemoglobin and carbon dioxide gas.
Answer:
(a) ATP
(b) Oxy-haemoglobin
(c) Pharynx
(d) Diaphragm
(e) Carbamino-haemoglobin
Question 2.
Name the body structure concerned with the given functional activity:
(a) Prevents food from entering the trachea during swallowing.
(b) Transports oxygen to the body cells.
(c) Helps to increase the volume of the chest cavity lengthwise.
(d) Combines with the oxygen in the lungs.
(e) Protects the lungs from mechanical injury
(f) Provides actual diffusion of respiratory gases in the lungs.
Answer:
(a) Epiglottis
(b) Capillaries
(c) Diaphragm
(d) Bronchioles
(e) Ribs
(f) Alveoli or air sacs
Question 3.
Name:
(a) Two kinds of respiration
(b) Two steps of cellular respiration
(c) Two phases of breathing
(d) Two main raw materials for respiration
(e) Two parts of tidal volume
Answer:
(a) Aerobic respiration and Anaerobic respiration
(b) Glycosis and Krebs Cycle
(c) Inhalation and Exhalation
(d) Glucose and Oxygen
(e) Dead Air space (150 ml) and Alveolar air (350 ml)
Question 4.
Arrange the organs of the human respiratory system in a proper logical sequence:
Bronchi, Lungs, Larynx, Nose, Trachea, Pharynx.
Answer:
Nose → Pharynx → Larynx → Trachea → Bronchi → Lungs
Question 5.
What is the normal percentage composition of gases in inspired and expired air respectively?
Answer:
| COMPONENT | INSPIRED AIR | EXPIRED AIR |
| 1. Oxygen | 20.96% | 16.40% |
| 2. Carbon dioxide | 0.04% | 4.00% |
| 3. Nitrogen | 79.00% | 79.60% |
Question 6.
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
| Column I | Column II |
| (a) Alveoli | (i) where aerobic respiration takes place |
| (b) Bronchioles | (ii) lined with hair |
| (c) Nasal Chamber | (iii) diffusion of gases |
| (d) Bronchi | (iv) small air tubes |
| (v) an inverted Y shaped tube | |
| (vi) a common passage for food and air |
Answer:
| Column I | Column II |
| (a) Alveoli | (iii) diffusion of gases |
| (b) Bronchioles | (iv) small air tubes |
| (c) Nasal Chamber | (ii) lined with hair |
| (d) Bronchi | (v) an inverted Y shaped tube |
— : End of The Respiratory System B. Very Short Answer Class-9 ICSE Biology Solutions :–
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