Biology

Respiration and Gas Exchange

989 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

What is the ratio of chest compressions to rescue breaths during CPR?

  1. 15:2

  2. 30:2

  3. 45:2

  4. 60:2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The ratio of chest compressions to rescue breaths during CPR is 30:2. This means that for every 30 chest compressions, two rescue breaths are given.

Multiple choice

What is the recommended compression-to-ventilation ratio for infants during CPR?

  1. 15:2

  2. 30:2

  3. 45:2

  4. 60:2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The recommended compression-to-ventilation ratio for infants during CPR is 30:2, just like for adults.

Multiple choice

How deep should chest compressions be for infants during CPR?

  1. 1-1.5 inches (2.5-3.8 cm)

  2. 1.5-2 inches (3.8-5 cm)

  3. 2-2.5 inches (5-6.3 cm)

  4. 2.5-3 inches (6.3-7.6 cm)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chest compressions for infants should be 1-1.5 inches (2.5-3.8 cm) deep, which is about one-third of the depth of the chest.

Multiple choice

How deep should chest compressions be for children during CPR?

  1. 1-1.5 inches (2.5-3.8 cm)

  2. 1.5-2 inches (3.8-5 cm)

  3. 2-2.5 inches (5-6.3 cm)

  4. 2.5-3 inches (6.3-7.6 cm)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chest compressions for children should be 2-2.5 inches (5-6.3 cm) deep, which is about one-third of the depth of the chest.

Multiple choice

What is the recommended compression-to-ventilation ratio for children during CPR?

  1. 15:2

  2. 30:2

  3. 45:2

  4. 60:2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The recommended compression-to-ventilation ratio for children during CPR is 30:2, the same as for adults.

Multiple choice

Which of the following is a sign of severe respiratory distress?

  1. Cyanosis

  2. Tachypnea

  3. Tachycardia

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cyanosis, tachypnea, and tachycardia are all signs of severe respiratory distress.

Multiple choice

What is the first-line treatment for respiratory failure?

  1. Oxygen therapy

  2. Mechanical ventilation

  3. Intravenous fluids

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Oxygen therapy is the first-line treatment for respiratory failure.

Multiple choice

What is the primary mechanism of drug absorption through the lungs?

  1. Passive diffusion

  2. Active transport

  3. Facilitated diffusion

  4. Pinocytosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Drug absorption through the lungs primarily occurs via passive diffusion.

Multiple choice

Which chronic disease is characterized by recurrent episodes of wheezing, coughing, and shortness of breath?

  1. Asthma

  2. Chronic obstructive pulmonary disease (COPD)

  3. Pneumonia

  4. Tuberculosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asthma is a chronic disease characterized by recurrent episodes of wheezing, coughing, and shortness of breath due to inflammation and narrowing of the airways.

Multiple choice

What is croup?

  1. Inflammation of the epiglottis

  2. Inflammation of the larynx

  3. Inflammation of the tonsils

  4. Inflammation of the adenoids
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Croup is the inflammation of the epiglottis, which is a small flap of tissue that covers the larynx.

Multiple choice

Which of the following is a common cause of cyanosis in neonates with respiratory distress syndrome?

  1. Surfactant deficiency

  2. Atelectasis

  3. Pneumonia

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Surfactant deficiency is a common cause of cyanosis in neonates with respiratory distress syndrome.

Multiple choice

What is sleep apnea?

  1. A condition in which a person stops breathing for short periods of time during sleep

  2. A condition in which a person has difficulty falling asleep

  3. A condition in which a person wakes up frequently during the night

  4. A condition in which a person feels tired and irritable during the day
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sleep apnea is a condition in which a person stops breathing for short periods of time during sleep. This can lead to loud snoring, gasping, or choking sounds during sleep. People with sleep apnea may also experience daytime sleepiness, fatigue, and difficulty concentrating.

Multiple choice

What is sleep apnea?

  1. A condition in which a person stops breathing for short periods of time during sleep

  2. A condition in which a person snores loudly

  3. A condition in which a person has difficulty falling asleep

  4. A condition in which a person wakes up frequently during the night
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sleep apnea is a condition in which a person stops breathing for short periods of time during sleep.

Multiple choice

Which of the following is a common respiratory condition in children characterized by recurrent wheezing and difficulty breathing?

  1. Asthma

  2. Pneumonia

  3. Cystic Fibrosis

  4. Bronchitis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asthma is a chronic respiratory condition that causes inflammation and narrowing of the airways, leading to recurrent wheezing, coughing, and difficulty breathing.

Multiple choice

What is the term for inflammation of the bronchi, the large airways in the lungs?

  1. Bronchitis

  2. Pneumonia

  3. Asthma

  4. Cystic Fibrosis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bronchitis is the inflammation of the bronchi, the large airways in the lungs, causing coughing, wheezing, and difficulty breathing.