Digestive System

Question 1

Order of the Digestive System

Answer 1

1. Mouth
2. Oesophagus
3. Stomach
4. Duodenum
5. Ileum
6. Large Intestine/Colon
7. Rectum
8. Anus

Question 2

Function of the mouth

Answer 2

Food is ingested, and is mechanically digested using teeth, which is then mixed + consumed with saliva forming bolus.

Question 3

Function of Oesophagus

Answer 3

Moves food down into the stomach through peristalsis reaction

Question 4

Parts of Oesophagus

Answer 4

Inside is circular muscle, Outside is longitudinal

Question 5

Function of Stomach

Answer 5

Bolus combines with Gastric juice, killing bacteria and breaking down protein to amino acids. Bolus -> Chyme

Question 6

What is Gastric juice made of

Answer 6

HCl + Pepsin (pH 3, Acidic and 37C)

Question 7

Function of duodenum and Ileum

Answer 7

Chyme breaks down by enzyme from pancreas in Duodenum.

In Ileum, chyme will continue to be broken down from enzymes produced by the wall of the small intestine.
-Here, most of the food and water is absorbed to the blood