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

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

What is the proper way to breathe during a weightlifting exercise?

  1. Inhale during the concentric phase and exhale during the eccentric phase.

  2. Inhale and exhale simultaneously throughout the lift.

  3. Hold your breath during the entire lift.

  4. Exhale during the concentric phase and inhale during the eccentric phase.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Inhaling during the concentric phase and exhaling during the eccentric phase helps stabilize the spine and reduce the risk of injury.

Multiple choice

What is a nasal consonant?

  1. A consonant that is produced by directing air through the nose

  2. A consonant that is produced by stopping the flow of air in the vocal tract

  3. A consonant that is produced by vibrating the vocal cords

  4. A consonant that is produced by touching the tongue to the roof of the mouth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A nasal consonant is a consonant that is produced by directing air through the nose. For example, the sounds [m], [n], and [ŋ] are nasal consonants.

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

Which language type is characterized by a system of implosives, in which the air is drawn into the lungs with a sudden burst, creating a sucking sound?

  1. Click

  2. Non-click

  3. Ejective

  4. Implosive
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Implosive languages have a unique phonological system in which the air is drawn into the lungs with a sudden burst, creating a sucking sound. This type of sound is not found in many languages.

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

What is the proper breathing technique for the squat exercise?

  1. Inhale at the bottom of the squat, exhale at the top

  2. Exhale at the bottom of the squat, inhale at the top

  3. Hold your breath throughout the entire squat

  4. It doesn't matter
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The proper breathing technique for the squat exercise is to inhale at the bottom of the squat, and exhale at the top, as this helps to stabilize the core and generate power.