Visking tubing containing starch and glucose is placed in water. After an hour,

  1. neither leaves the tubing
  2. both are found in the water
  3. glucose is found in the water but starch is not
  4. starch leaves but glucose stays
Answer

C) glucose is found in the water but starch is not

Glucose is small enough to pass; starch is too large. AS & A Level Biology · Topic 4 Cell Membranes and Transport · 4.2 Movement into and out of cells

Biology MCQ · More A Level Biology: Cell membranes and transport MCQs · Practise