A person eats a piece of bread containing starch. What is the function of the salivary glands in the digestion of this food?

After food is swallowed, how does the oesophagus help it reach the stomach?

Which description correctly links the stomach to digestion?

The pancreas contributes to digestion even though food does not pass through it. How does it perform this function?

Why is the small intestine well suited to its main role after digestion has produced small, soluble molecules?

Which statement correctly describes the role of the anus in egestion?

The diagram shows an accessory organ labelled X. What is the function of X in digestion?

The diagram shows blood carrying absorbed nutrients from the small intestine to organ Y. Which activity of organ Y is an example of assimilation?

The organ labelled Z receives material that has passed through the small intestine. Which statement describes an important function of Z?