NEET Biology - New - Breathing and Exchange of Gases

Buy NEET English 2025-New Practice test pack

Question - 1

Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of 

  • A Diaphragm
  • B Neck
  • C Tongue
  • D Epiglottis

Question - 2

Lungs do not collapse between breathe and some air always remain in the lungs which can never be expelled because:

  • A There is a negative pressure in the lungs
  • B There is a negative intrapleural pressure pulling at the lung walls
  • C There is a positive intrapleural pressure
  • D Pressure in the lungs is higher than the atmospheric pressure

Question - 3

The partial pressure of oxygen in the alveoli of the lungs is:

  • A Equal to that in the blood
  • B More than that in the blood
  • C Less than that in the blood
  • D Less than that of carbon dioxide

Question - 4

What is the vital capacity of our lungs?

  • A Totallungs capacity minus residual volume
  • B Inspiratory reserve volume plus tidal volume
  • C Total lungs capacity minus expiratory reserve volume
  • D Inspiratory reserve volume plus expiratory reserve volume

Question - 5

Which of the following options correctly represents the lung conditions in asthama and emphysema, respectively?

  • A Increased respiratory surface; Inflammation of bronchioles
  • B Increased number of bronchioles; Increased respiratory surface
  • C Inflammation of bronchioles; Decreased respiratory surface
  • D Decreased respiratory surface; Inflammation of bronichioles

Question - 6

Which of the following is an occupational respiratory disorder?

  • A Botulism
  • B Silicosis
  • C Anthracis
  • D Emphysema

Question - 7

Reduction the pH of blood will:

  • A Reduce the blood supply to the brain
  • B Decrease the affinity of haemoglobin with oxygen
  • C Release bicarbonate ions by the liver
  • D Reduce the rate of heartbeat

Question - 8

Name the chronic respiratory disorder caused mainly by cigarette smoking:

  • A Asthma
  • B Respiratory acidosis
  • C Respiratory alkalosis
  • D Emphysema

Question - 9

Name the pulmonary disease in which the alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.

  • A Pleurisy
  • B Emphysema
  • C Pneumonia
  • D Asthma

Question - 10

Bulk of carbon dioxide released from body tissues into the blood is present as:

  • A Bicarbonate in blood plasma and RBCs
  • B Free CO2 in blood plasma
  • C 70% carbamino-haemoglobin and 30% as bicarbonate
  • D Carbamino-haemoglobin in RBCs
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next
Previous Next