Biology 5090 · O Level · Active transport

Active transport — practice question

The table presents the absorption rates of two different sugars, arabinose and glucose, in living and dead intestines. In each case, the sugar concentrations inside the intestines were identical. What are the main methods by which arabinose and glucose are absorbed in living intestine?

  • Aarabinose: active transport; glucose: active transport
  • Barabinose: active transport; glucose: diffusion
  • Carabinose: diffusion; glucose: active transport
  • Darabinose: diffusion; glucose: diffusion

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