Multiple choice

Transport of two substances in the same direction is called________.

  1. uniport

  2. symport

  3. antiport

  4. gating

  5. diffusion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It simultaneously transports two substances across membrane in the same direction. It is also called co-transport. In this, one compound is being transported down the concentration gradient, the other against a gradient. It uses a common carrier mechanism to transport. Sodium and glucose transport is an example for symport. Here, the energy stored as proton gradient drives solute transport.

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