Biology 2.1.3

Question 1

The Digestive System is an example of an…

Answer 1

Organ System.

Question 2

Define ‘Digestion’:

Answer 2

Digestion is a Process by which Relatively Large, Insoluble, Molecules in Food are broken down into Smaller, Soluble, Molecules that can be Absorbed into the Bloodstream, & Delivered to Cells in the Body.

Question 3

Functions of the Mouth/Salivary Glands in the Digestive System: (2)

Answer 3

-Teeth Chew Food.

-Amylase Enzymes in Saliva start Digesting Carbohydrates.

Question 4

Functions of the Oesophagus in the Digestive System: (1)

Answer 4

Tube that Connects the Mouth to the Stomach.

Question 5

Functions of the Stomach in the Digestive System: (3)

Answer 5

-Churns Food.

-Hydrochloric Acid Kills Bacteria.

-Protease Enzymes Digest Proteins.

Question 6

Functions of the Small Intestine in the Digestive System: (1)

Answer 6

Absorption of Digested Food Molecules into the Bloodstream.

Question 7

Functions of the Large Intestine in the Digestive System: (1)

Answer 7

Water is Absorbed from the remaining material. Faeces is Produced.

Question 8

Functions of the Pancreas in the Digestive System: (3)

Answer 8

-Amylase.

-Protease.

-Lipase.

Question 9

Functions of the Liver in the Digestive System: (2)

Answer 9

-Produces Bile.

-Produces Urea.

Question 10

Functions of the Gal Bladder in the Digestive System: (1)

Answer 10

Stores Bile to Release into the Duodenum as required.