Breathing and exchange of gases MCQ for NEET exam

Breathing and Exchange of Gases for NEET MCQ

 

Prepare for NEET with these multiple-choice questions on breathing and the exchange of gases. Each question comes with four options and the correct answer. Test your knowledge and improve your understanding of this important topic for NEET.

MCQs on Breathing and Exchange of Gases for NEET

Respiration is helpful in:

(a) Removing waste from the body
(b) Producing energy within the body
(c) Production of proteins
(d) Production of carbohydrates

Ans: Producing energy within the body

The surface, from which the exchange of gas takes place is called:

(a) Plasma surface
(b) Respiratory substrates
(c) Respiration surface
(d) Gaseous surface

Ans: Respiration surface

Which of the following shows pulmonary respiration?

(a) Sponge
(b) Fishes
(c) Coelenterate
(d) Human

Ans: Human

What is the upper region of the pharynx called?

(a) Oropharynx
(b) Nasopharynx
(c) Laryngopharynx
(d) None of these

Ans: Nasopharynx

The trachea is supported by cartilaginous rings, which are shaped:

(a) C
(b) L
(c) O
(d) S

Ans: C

A lung contains many small balloon-like air sacs called:

(a) Gas spaces
(b) Alveoli
(c) Bronchi
(d) Bronchioles

Ans: Alveoli

Intercostal muscles regulate the movement of:

(a) Ribs
(b) Trachea
(c) Diaphragm
(d) Pharynx

Ans: Ribs

Respiratory control centers are located in:

(a) Lungs
(b) Medulla oblongata
(c) Spinal cord
(d) Ribs

Ans: Medulla oblongata

The deoxygenated blood from the heart comes to the lungs by:

(a) Pulmonary artery
(b) Pulmonary vein
(c) Bronchial artery
(d) Renal vein

Ans: Pulmonary artery

The metal ion present in hemoglobin is:

(a) Iron
(b) Magnesium
(c) Copper
(d) Zinc

Ans: Iron

How much fraction of oxygen is transported to tissues through RBCs?

(a) 100%
(b) 56%
(c) 45%
(d) 97%

Ans: 97%

H₂CO₃ is converted into CO₂ and H₂O with the help of an enzyme known as:

(a) Carboxylase
(b) Carbonic dehydrogenase
(c) Carbonicenhydrase
(d) Carbonic anhydrase

Ans: Carbonic anhydrase

The largest amount of CO₂ is transported in blood as:

(a) Carbamino compounds
(b) Bicarbonates
(c) Carbonic acid
(d) Carbonate ions

Ans: Bicarbonates

Chloride back-shift is associated with the transport of:

(a) Carbamino
(b) CO₂
(c) Oxygen
(d) Water

Ans: Oxygen

Keep practicing these questions to enhance your preparation for the NEET exam, focusing on breathing and exchange of gases. Understanding these concepts is crucial for scoring well in the biology section of the exam.