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NEET Biology question

BiologyTransport in PlantsNEET

Not in NEET syllabus

Select the correct option with reference to the statements given below.

I. Facilitated diffusion cannot cause net transport against the concentration gradient. II. Transport rate in the case of facilitated diffusion never reaches a maximum level. III. Facilitated transport is sensitive to proteins that act as inhibitors. IV. A concentration gradient is not required in the case of facilitated diffusion.

Answer: (C)

Solution

I is correct — facilitated diffusion, being passive, can only move a solute down (never against) its concentration gradient. III is correct — like other carrier-mediated transport, it is sensitive to inhibitors acting on the carrier protein. II is

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Question ID VK-127664