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ICSE Class 8 Biology Question 19 of 21

Transport in Plants — Question 19

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19
Question

Question 10(a)

Distinguish between the following pairs on the basis of words indicated in the brackets:

Diffusion and active transport (concentration gradient)

Answer
PropertyDiffusionActive transport
Concentration gradientMovement of molecules occur from their higher concentration to lower concentration.Movement of molecules occur from their lower concentration to a higher concentration at the expense of plant's energy.