Mention the boundaries of the thoracic cavity.

Important Questions on Breathing and Exchange of Gases

EASY

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 22

What is meant by inspiration and expiration?

HARD

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 23

Distinguish between inspiratory capacity and expiratory capacity.

MEDIUM

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 24

How is inspired air conditioned in man?

MEDIUM

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 25

What happens to oxy-haemoglobin, when the blood reaches the tissues?

HARD

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 26

What does the right and left shift of the oxygen haemoglobin dissociation curve indicate?

HARD

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 30

Write a note on larynx.

HARD

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 32

How does the exchange of gases take place in the lungs?

HARD

11th ICSE

IMPORTANT

All in one ISC BIOLOGY Class 11>Chapter 20 - Breathing and Exchange of Gases>Chapter Practice>Q 33

What happens to the oxygen dissociation curve in the alveoli?