Biology

Respiration and Gas Exchange

958 Questions

Access a targeted set of questions on respiration and gas exchange for competitive exams. Topics include lung volumes, the mechanism of breathing, and respiratory anatomy. Understanding these physiological processes is essential for scoring well.

Lung volumes and capacitiesBreathing mechanismsRespiratory anatomyGas exchange processes

Respiration and Gas Exchange Questions

Multiple choice

Which of the following is incorrectly matched?

  1. Dysporea - Difficulty or painful breathing

  2. Apnoea - Cessation of breathing

  3. Anoxia - Absence of oxygen

  4. Hypoxia - Reduced oxygen content of air or a body

  5. Cyanosis - High oxygen concentration in breathing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It is correctly matched. Cyanosis is the appearance of a blue or purple colouration of the skin.

Multiple choice

What is tachypnoea?

  1. Increased heart rate

  2. Decreased heart rate

  3. Increased respiration rate

  4. Decrease respiration rate

  5. Increased circulation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tachypnoea is the term for increased respiration rate.

Multiple choice

Match the following and choose the correct options given below.(i) Tidal volume A) 2500- 3000 ml of air ii) Inspiratory volume (B) 1000 ml of air iii) Residual volume (C) 500 ml of air iv)Vital capacity (D) 3400 - 4800 ml of air(v) Expiratory reserve volume (E) 1200 ml of air

  1. (i) - (A), (ii) - (C), (iii) - (B), (iv) - (E), (v) - (D)

  2. (i) - (B), (ii) - (A), (iii) - (E), (iv) - (D), (v) - (C)

  3. (i) - (C), (ii) - (A), (iii) - (E), (iv) - (D), (v) - (B)

  4. (i) - (D), (ii) - (E), (iii) - (B), (iv) - (C), (v) - (A)

  5. (i) - (A), (ii) - (B), (iii) - (C), (iv) - (D), (v) - (E)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tidal volume: 500 ml of air; Inspiratory reserve volume: 2500 to 3000 ml of air; Residual volume: 1200 ml of air; Vital capacity: 3400 to 4800 ml of air; Expiratory reserve volume: 1000 ml of air