Breathing and Exchange of Gases – Respiratory Organs, Mechanism of Breathing
Biology · Grade 11 · Week 42 · 25 questions
Breathing and Exchange of Gases is a key Grade 11 biology chapter focusing on Respiratory Organs and Mechanism of Breathing. Clear diagrams and defined terms from this chapter are high-frequency in NCERT exemplar and boards.
What you'll practise
- Identify Respiratory Organs
- Identify Mechanism of Breathing
- Apply breathing and exchange of gases concepts to NCERT exercise and exemplar problems
All 25 questions in this Breathing and Exchange of Gases – Respiratory Organs, Mechanism of Breathing quiz
Grade 11 Biology — Breathing and Exchange of Gases – Respiratory Organs, Mechanism of Breathing: 25 practice questions with instant scoring and explanations.
- Respiration in earthworms occurs through
- Insects respire through a network of
- Gills are the respiratory organ in
- Mammalian respiratory organ is
- Pathway of air into lungs is
- C-shaped cartilage rings prevent collapse of
- Actual site of gas exchange in lungs is
- Pleural membranes enclose the
- Epiglottis prevents food from entering
- Diaphragm is a muscular sheet separating
- During inspiration, diaphragm
- External intercostal muscles during inspiration
- Intrapulmonary pressure during inspiration becomes
- Quiet expiration is mainly a
- Respiratory rhythm centre is located in
- Pneumotaxic centre is located in
- Chemoreceptors for CO2/H+ are mainly in
- Tidal volume is approximately
- Vital capacity equals
- Residual volume is air left in lungs after
- Total lung capacity is approximately
- Surfactant in alveoli reduces
- Hyaline membrane disease in premature infants is due to lack of
- Spirometer measures
- Dead space is air that does not participate in
Question 1 of 250 correct so far