Membrane Transport Mechanisms
- Previous year questions on Membrane Transport Mechanisms for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Physiology section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 5 live questions in Membrane Transport Mechanisms.
- 2 of 5 questions carry a verified exam year: 2017, 2018.
- Physiology is worth about 17 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 19 Aug 2026.
Q1.Facilitated diffusion is characterized by all except
- AVmax
- BCompetitive inhibition
- CRequires energy✓ Correct answer
- DSpecificity
Q2.Which of the following moves rapidly across the membrane
- ACO2✓ Correct answer
- Bwater
- Cglucose
- Durea
Q3.What determine the movement of water insoluble substance in the body:
- ACharge
- BMolecular weight
- CLipid solubility✓ Correct answer
- DHydrated diameter of molecule
Q4.Which of the following ion plays role in exocytosis?
- ASodium
- BPotassium
- CCalcium✓ Correct answer
- DMagnesium
Q5.Fick's law deals with
- APassive diffusion of molecules along the concentration gradient✓ Correct answer
- BActive diffusion of molecules along the concentration gradient
- CBoth passive and active diffusion of molecules along the concentration gradient
- DNot concerned with the diffusion of molecules
Answer key
Q1: C. Requires energy; Q2: A. CO2; Q3: C. Lipid solubility; Q4: C. Calcium; Q5: A. Passive diffusion of molecules along the concentration gradient.
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