Here we will provide you the 50+ MCQ Questions of Breathing and Exchange of Gases for NEET-UG. Breathing and Exchange of Gases is the second chapter in Class XI or Class 11 Biology NCERT Unit Breathing and Exchange of Gases NEET (conducted by NTA) is based on the NCERT book.
These 50+ MCQ questions are selected by the experts of studyrate.in, and these are more difficult questions, which will help you to better understand Breathing and Exchange of Gases NEET MCQ Questions with Answers.
Breathing and Exchange of Gases NEET MCQ
The respiratory center that is responsible for controlling the rate and depth of breathing is located in the:
A) Medulla oblongata
B) Pons
C) Cerebral cortex
D) Hypothalamus
Answer:Answer: A) Medulla oblongata
The exchange of gases between the alveoli and the pulmonary capillaries is called:
A) External respiration
B) Internal respiration
C) Cellular respiration
D) Aerobic respiration
Answer:Answer: A) External respiration
Which of the following is a muscle that contracts to increase the volume of the thoracic cavity during inhalation?
A) Diaphragm
B) Abdominal muscles
C) Intercostal muscles
D) Gluteal muscles
Answer:Answer: A) Diaphragm
The enzyme that catalyzes the conversion of carbon dioxide and water into carbonic acid in red blood cells is called:
A) Carbonic anhydrase
B) Hemoglobin
C) Myoglobin
D) Fibrinogen
Answer: Answer: A) Carbonic anhydrase
The exchange of gases between the tissue capillaries and the cells is called:
A) External respiration
B) Internal respiration
C) Cellular respiration
D) Aerobic respiration
Answer: Answer: B) Internal respiration
Which of the following is a condition in which the airways become narrow and inflamed, making it difficult to breathe?
A) Asthma
B) Bronchitis
C) Emphysema
D) Pneumonia
Answer: Answer: A) Asthma
The total volume of air that can be exhaled from the lungs after a maximum inhalation is called the:
A) Vital capacity
B) Residual volume
C) Inspiratory reserve volume
D) Expiratory reserve volume
Answer:Answer: A) Vital capacity
The exchange of gases between the blood and the tissues is dependent on the concentration gradients of:
A) Oxygen and carbon dioxide
B) Carbon dioxide and nitrogen
C) Nitrogen and oxygen
D) Oxygen and water vapor
Answer: Answer: A) Oxygen and carbon dioxide
Which of the following is a gas that is produced during aerobic respiration and diffuses into the blood from the tissues?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Water vapor
Answer: Answer: B) Carbon dioxide
Which of the following is a respiratory disorder that is characterized by chronic inflammation of the airways and excess mucus production?
A) Asthma
B) Bronchitis
C) Emphysema
D) Pneumonia
Answer:Answer: B) Bronchitis
The process by which oxygen is transported from the lungs to the tissues and carbon dioxide is transported from the tissues to the lungs is called:
A) Gas exchange
B) Ventilation
C) Respiration
D) Circulation
Answer: Answer: D) Circulation
Which of the following is a respiratory disorder that is characterized by damage to the alveoli, leading to reduced gas exchange?
A) Asthma
B) Bronchitis
C) Emphysema
D) Pneumonia
Answer: Answer: C) Emphysema
The amount of air that enters or leaves the lungs during normal breathing is called the:
A) Tidal volume
B) Vital capacity
C) Residual volume
D) Expiratory reserve volume
Answer:Answer: A) Tidal volume
The process by which oxygen is carried by the blood bound to hemoglobin is called:
A) Oxidation
B) Reduction
C) Oxyhemoglobin saturation
D) Respiratory quotient
Answer:Answer: C) Oxyhemoglobin saturation
Which of the following is the site of gas exchange in the lungs?
A) Trachea
B) Bronchi
C) Bronchioles
D) Alveoli
Answer: Answer: D) Alveoli
The respiratory pigment that is responsible for carrying oxygen in red blood cells is called:
A) Hemoglobin
B) Myoglobin
C) Chlorophyll
D) Cytochrome
Answer: Answer: A) Hemoglobin
The respiratory pigment that is responsible for carrying oxygen in muscles is called:
A) Hemoglobin
B) Myoglobin
C) Chlorophyll
D) Cytochrome
Answer:Answer: B) Myoglobin
Which of the following is a measure of the efficiency of gas exchange in the lungs?
A) Respiratory rate
B) Tidal volume
C) Alveolar ventilation
D) Diffusion capacity
Answer:Answer: D) Diffusion capacity
The condition in which the blood pH becomes too low due to an excess of carbon dioxide is called:
A) Respiratory alkalosis
B) Respiratory acidosis
C) Metabolic alkalosis
D) Metabolic acidosis
Answer: Answer: B) Respiratory acidosis
The condition in which the blood pH becomes too high due to a decrease in carbon dioxide is called:
A) Respiratory alkalosis
B) Respiratory acidosis
C) Metabolic alkalosis
D) Metabolic acidosis
Answer: Answer: A) Respiratory alkalosis
Which of the following is the correct sequence of events during inhalation?
A) Diaphragm contracts, rib cage moves outwards, thoracic cavity volume decreases
B) Diaphragm relaxes, rib cage moves inwards, thoracic cavity volume increases
C) Diaphragm contracts, rib cage moves inwards, thoracic cavity volume decreases
D) Diaphragm relaxes, rib cage moves outwards, thoracic cavity volume increases
Answer:Answer: A) Diaphragm contracts, rib cage moves outwards, thoracic cavity volume decreases
The amount of air that can be forcefully exhaled after a normal exhalation is called:
A) Tidal volume
B) Inspiratory reserve volume
C) Expiratory reserve volume
D) Vital capacity
Answer:Answer: C) Expiratory reserve volume
The maximum amount of air that can be breathed in or out of the lungs is called:
A) Tidal volume
B) Inspiratory reserve volume
C) Expiratory reserve volume
D) Vital capacity
Answer:Answer: D) Vital capacity
The process by which carbon dioxide is transported in the blood is called:
A) Dissolved CO2 transport
B) Carbamino transport
C) Bicarbonate transport
D) All of the above
Answer: Answer: D) All of the above
The enzyme that converts carbon dioxide and water into carbonic acid in red blood cells is called:
A) Carbonic anhydrase
B) Carbonic oxidase
C) Carbonic dehydrogenase
D) Carbonic isomerase
Answer:Answer: A) Carbonic anhydrase
We hope there NEET MCQ of Class 11 Chapter 17 Breathing and Exchange of Gases will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
