Biology Topic Practice

Hierarchy of the Digestive System

The digestive system is a perfect example of how different organs work together in a coordinated organ system.

Can you name the organs in the correct sequence?

What is Hierarchy of the Digestive System?

"The digestive system is an organ system in which several organs work together to digest and absorb food."

Question 1

What is the main job of the human digestive system?

Question 2

Where does most absorption of digested food into the bloodstream take place?

Question 3

Why is the small intestine well adapted for absorption?

Digestive Organisation

The mouth and stomach start the breakdown of food.

The small intestine is where most digestion and absorption occurs.

The large intestine absorbs water, leaving undigested food as faeces.

Exam Tip

The pancreas and salivary glands are glands that produce enzymes to aid digestion.

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