Match the following related to respiratory volumes and capacities. Column I Column II i Tidal volume a 2500 to 3000 ml of air ii Inspiratory reserve volume b 1000 ml of air iii Expiratory reserve volume c 500 ml of air iv Residual volume d 3400 to 4800 ml of air v Vital capacity e 1200 ml of air

i - c , ii - a , iii - b , iv - e and v - d

i - c , ii - d , iii - b , iv - a and v - e

i - c , ii - a , iii - d , iv - e and v - b

i - e , ii - d , iii - b , iv - a and v - c

Which is the correct sequence of the air passage in man?

Nasal cavity → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli

Nasal cavity → Pharynx → Trachea → Larynx → Bronchi → Bronchioles → Alveoli

Nasal cavity → Larynx → Pharynx → Trachea → Bronchi → Bronchioles → Alveoli

Nasal cavity → Larynx → Bronchi → Pharynx → Trachea → Bronchioles → Alveoli

The unpaired cartilages supporting the wall of larynx are

Thyroid, Cricoid and Epiglottis

Thyroid, Corniculate and Epiglottis

Cuneiform, Cricoid and Epiglottis

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 36 - Breathing and Respiration>AP EAPCET Medical 2021 (6-Sep Forenoon)>Q 9

MEDIUM

AP EAPCET

IMPORTANT

Earn 100

Assertion ( $A$ ): Biconcave shape of mammalian $RBC$ facilitates gas exchange.

Reason ( $R$ ): Biconcave shape provides a high surface to volume ratio.

50% studentsanswered this correctly

Important Questions on Breathing and Respiration

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 36 - Breathing and Respiration>AP EAPCET Medical 2021 (6-Sep Afternoon)>Q 10

The process in which atmospheric air with

21 %

of

O_{2}

is drawn in and alveolar air rich in

{CO}_{2}

is sent out is called

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 36 - Breathing and Respiration>AP EAPCET - 3 Sep 2021 Forenoon>Q 11

Match the following?

List I		List II
i)	${PO}_{2}$ of alveoli lungs	a)	40 mmHg
ii)	${PO}_{2}$ of atmosphenc air	b)	95 mmHg
iii)	${PO}_{2}$ of deoxygenated blood	c)	104 mmHg
iv)	${PO}_{2}$ of oxygenated blood	d)	159 mmHg

EASY

AP EAPCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 36 - Breathing and Respiration>AP EAPCET - 3 Sep 2021 Afternoon>Q 12

Identify the correct group of statements
(i) Oxygen is carried by Haemoglobin.
(ii) Oxygen is carried by carbonic anhydrase.
(iii) Carbon dioxide is carried by Haemoglobin.
(iv) Sulphur dioxide is carried by Haemoglobin.