Which of the following is wrong? (A) The movement of a molecule across a typical plant cell of a...

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Which of the following is wrong?
(A) The movement of a molecule across a typical plant cell of about \( 50 \mu \mathrm{m} \) takes approximatcly \( 2.5 \) seconds
(B) Long distance transport of substances within a plant cannot be by diffusion alone
(C) Active transport in plants mainly helps in long distance transport
(D) All of the above
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