Digestive System

Question 1

The digestive system consists of?

Answer 1

A six to seven metre long tube known as either the digestive tract or the gut.

Question 2

Stomach

Answer 2

Mechanical digestion starts here.

Chemical digestion of carbohydrates starts here.

Question 3

Large intestine

Answer 3

Strong acid helps to digest proteins to kill bacteria.

Question 4

Mouth

Answer 4

Digestion begins in the mouth, where teeth bite, cut and grind food into smaller pieces.

Question 5

Oesophagus

Answer 5

This structure is long, but narrow. Useful nutrients pass through the wall into the body where they are taken by the blood cells.

Question 6

Small intestine

Answer 6

This is the tube that carries the chewed food from the mouth to the stomach.

Question 7

Duodenum

Answer 7

This is the start of the small intestine, tubes from the pancreas, liver and gall bladder join the digestive tract, allowing bile to enter.

Question 8

Anus

Answer 8

A ring-like muscle is normally closed but opens when faeces needs to pass.