Respiratory System Very Short Answer Biology Class-9 ICSE Selina Publishers

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 :–

Return to  Return to Concise Selina ICSE Biology Class-9 

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