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Breathing and Exchange of Gases — NEET UG Biology PYQs

36 previous year questions from Breathing and Exchange of Gases with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

Breathing and Exchange of Gases — NEET UG Biology PYQs

In the given diagram, what should be P, Q, R and S respectively?

Select the INCORRECT statement.

Match the parts of respiratory system given in column I with their respective functions in column II and choose the correct option given below. Column I Column II A. Mesethmoid car

Before the formation of oxyhaemoglobin, the O ₂ has to pass through _________ membranes from the alveolar air.

The volume of air present in respiratory tract from nose upto terminal bronchioles and which is not involved in gaseous exchange is -

Consider the following situations for an adult human being -- I) The maximum amount of air that can be breathed out after a maximum inspiration is around 4500 ml. II) Tidal volume

Which special feature among the following is seen in frogs for gaseous exchange through the skin?

Which of the following statements are correct? (A) Intrathoracic pressure decreases during inspiration. (B) Activation of pneumotaxic center stimulates inspiration. (C) During expi

________ is a common respiratory illness characterized by inflammation of the lungs, cough and fever, chills, shortness of breath.

The oxyhaemoglobin dissociation curve shifts towards left due to increase in ___________.

Read the following statements with respect to LUNGS and select the correct option: (A). They are the respiratory organs. (B). They help in excretion of water and oxygen. (C). They

Following are the parts of upper respiratory system i) External nares ii) Nasal cavities iii) Internal nares iv) Nasopharynx v) Larynx vi) Trachea Choose the correct answer from th

The partial pressure of oxygen of blood in pulmonary capillaries is ----(i)---- mmHg while in alveolar air it is -------(ii)----- mmHg.

Which of the following is NOT directly related to chloride shift?

Select the INCORRECT statement with respect to the respiratory system.

The volume of air remaining in the lungs and the dead space even after maximum expiration is ----------ml.

Given below are two statements: Statement I - The oxygen transported in dissolved state by the plasma in human beings is about 10 % . Statement II - The CO ₂ transported by the pla

Given below are two statements about the oxygen dissociation curve. Statement (I): The relationship between HbO₂ saturation and oxygen tension (ppO₂ ) is called oxygen dissociation

Match the Column- I with Column- II. Column- I (Disorder) Column- II (Symptoms) A) Emphysema I) Difficulty in breathing, constriction of bronchioles B) Laryngitis II) Breakdown of

Entry of food into trachea is prevented by ___________.

Identify the correct statements about human lungs. (A). Each lung is enclosed in a double plural membrane with a fluid filled cavity between them. (B). The left lung is larger and

Which one of the following respiratory disorders is NOT caused by bacteria or viruses?

Given below are two statements about transport of O ₂ and CO ₂ . Statement (I): In the alveoli, where ppO ₂ is high and ppCO ₂ is low, the oxygen binds to haemoglobin. Statement (I

Which one of the following prevents the collapsing of the trachea even when there is no air?

Which one of the following parts of the pharynx is the continuation of the internal nares?

If in a person, the trachea and bronchi of the respiratory system do not have tracheal rings, then which of the following would be the result?

In the lungs, the alveolar air is separated from blood by ______.

Which one of the following is NOT a respiratory center which regulates breathing in human?

Which of the following doesn't happen during inspiration?

Identify the INCORRECT statement:

Arrange the following organs of the Human respiratory system from outside to inside:

Arrange the following in order of increasing volume (P) Residual volume (Q) Tidal volume (R) Inspiratory reserve volume (S) Expiratory reserve volume

Which of the following does NOT occur during inspiration ?

Underwater turtles respire with the help of ______.

Match List I with List II List I (Organism) List II (Respiratory surface) (A). Coelenterates (I). External gills (B). Limulus (II). Plasma membrane (C). Birds (III). Lungs (D). Sal

We can voluntarily change our pattern of breathing because the respiratory centre __________.