3.2 The Human Digestive System (GCSE Biology)

The following is a GCSE Biology test covering '3.2 The Human Digestive System'

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What are villi?

Which process describes moving digested molecules into blood vessels in villi?

Food molecules absorbed in the small intestine first enter what?

How do digested food molecules reach the body`s cells?

What do glands in the digestive system release?

The digestive system is longer than the average cell by approximately how many orders of magnitude?

What is a key adaptation of the small intestine for absorption?

Where does the absorption process mainly occur within the digestive system?

What role does the small intestine primarily have?

Which is the muscular tube connecting the mouth to the stomach?

How is food moved along the digestive system?

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