Breathing and Exchange of Gases

Class 11 · Biology

100 questions40 easy41 medium19 hard

Sample Questions

Q1.Tidal volume (TV) is approximately:

  • A500 mL
  • B1100 mL
  • C2500 mL
  • D3500 mL

Q2.If the conducting zone of the airways were absent, which of the following problems would NOT occur?

  • AForeign particles reaching the alveoli
  • BCold, dry air reaching alveoli
  • CReduced oxygen-carrying capacity of haemoglobin
  • DUnfiltered air entering the lungs

Q3.The pCO2 in the alveoli is 40 mm Hg while in the deoxygenated blood it is 45 mm Hg. What does this gradient facilitate?

  • ADiffusion of CO2 from alveoli to blood
  • BDiffusion of CO2 from blood to alveoli
  • CDiffusion of O2 from blood to alveoli
  • DNo net movement of CO2

Q4.Residual volume is the volume of air:

  • AInspired during normal breathing
  • BRemaining in the lungs after forcible expiration
  • CExpired during normal breathing
  • DRemaining after normal expiration

Q5.Vital capacity (VC) includes which of the following volumes?

  • AERV + TV + IRV
  • BERV + TV + RV
  • CIRV + RV + TV
  • DTV + RV

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Carbonic Anhydrase and BicarbonateConducting and Exchange PartsDiffusion MembraneDisorders of the Respiratory SystemExchange of Gases and Partial PressureHuman Respiratory System AnatomyMechanism of BreathingOxygen Dissociation CurveRegulation of RespirationRespiratory CapacitiesRespiratory Organs in Different OrganismsRespiratory VolumesTransport of Carbon DioxideTransport of Oxygen

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