WAEC Biology 2018 Objective — Question 6
Question 6 of 50 from the West African Examinations Council (WAEC) Biology 2018 Objective paper, with the correct answer and a full explanation.
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Active transport differs from diffusion in that active transport
- A. is a very fast process
- B. allows the movement of substances against concentration gradientCorrect
- C. take place in both light and dark reaction of photosynthesis
- D. occurs in both plant and animal tissues
Explanation
Unlike diffusion, active transport moves substances against (up) a concentration gradient and requires energy.
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