Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2019
Exam
NEET
Year
2019
Subject
Zoology
Chapter
Breathing and Exchange of Gases

NEET 2019 · Zoology · Breathing and Exchange of Gases

Select the correct statement.

Select the correct statement.

Options

  1. AExpiration occurs due to external intercostal muscles
  2. BIntrapulmonary pressure is lower than the atmospheric pressure during inspiration
  3. CInspiration occurs when atmospheric pressure is less than intrapulmonary pressure
  4. DExpiration is initiated due to contraction of diaphragm

Correct answer

B. Intrapulmonary pressure is lower than the atmospheric pressure during inspiration

Step-by-step solution

Statement (b) is correct as intrapulmonary pressure is lower than the atmospheric pressure during inspiration. Other statements can be corrected as (a) Inspiration occurs due to external intercoastal muscles. (c) Inspiration occurs when atmospheric pressure is more than intrapulmonary pressure. (d) Inspiration is initiated due to contraction of diaphragm.
Practice Breathing and Exchange of Gases on Quantrex Academy →

More from Breathing and Exchange of Gases

Match List I with List II : List I (Respiratory Volume) List II (Capacity in mL) A. ERV… NEET 2026In humans, respiration occurs in the following steps. Arrange these steps in the correct… NEET 2026Sponges exchange O _2 with CO _2 by __________. NEET 2026In water, frogs respire using __________. NEET 2026Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and… NEET 2025Match List-I with List-II. List - I List - II A. Emphysema (i) Rapid spasms in muscle due… NEET 2025Given below are two statements: One is labelled as Assertion A and the other is labelled… NEET 2024Match List I with List II : Choose the correct answer from the options given below : NEET 2024 Full Breathing and Exchange of Gases list All NEET PYQs