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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Botany
Chapter
Transport in Plants

NTA Abhyas 2020 · Botany · Transport in Plants

Which of the following statements is incorrect?

Which of the following statements is incorrect?

Options

  1. ADifferent substances move independently along their concentration gradient in mass flow.
  2. BActive absorption of ions from the soil by the root is mainly affected by respiratory activity of root.
  3. CThe translocation of organic solutes in sieve tube members is supported by mass flow.
  4. DRoot pressure develops due to active absorption.

Correct answer

A. Different substances move independently along their concentration gradient in mass flow.

Step-by-step solution

Mass or bulk flow is the movement of substances in bulk from source to sink as a result of pressure differences. Mass flow is not to be confused with diffusion which depends on concentration gradients within a medium rather than pressure gradients of the medium itself.
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