WBCS.LIVE practice question

Which one of the following is active transport?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. It is the movement of a substance against a diffusion gradient with the use of energy from respiration
  2. It is the movement of a substance against a diffusion gradient without the use of energy
  3. It is the movement of a substance against a diffusion gradient with the use of energy from photosynthesis
  4. It is the movement of a substance along a diffusion gradient with the use of energy from respiration

Correct answer and explanation

Correct answer: It is the movement of a substance against a diffusion gradient with the use of energy from respiration