Biology 5090 · O Level · Human digestive system

Human digestive system — practice question

Starch digestion takes place in the mouth cavity and in the duodenum, but it does not continue in the stomach. Why does this happen?

  • AAll the starch has been digested before it reaches the stomach.
  • BCells in the stomach do not produce amylase.
  • CThe pH in the stomach alters the shape of the amylase.
  • DThe temperature in the stomach is too high for amylase to work.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI