The Digestive System

Question 1

The breakdown of larger insoluble molecules in to smaller soluble molecules is called _____?

Answer 1

Digestion

Question 2

What is the first stage of Digestion?

Answer 2

Ingestion

Question 3

What is the final stage of digestion?

Answer 3

Egestion

Question 4

Digestion is the ______ stage of the process.

Answer 4

Second

Question 5

The process in which soluble products are absorbed into the bloodstream is called ____?

Answer 5

Absorption

Question 6

Assimilation is when _______?

Answer 6

The soluble products of digestion are taken into the cells where they are used

Question 7

What is egestion?

Answer 7

Removal of waste food

Question 8

What happens during ingestion?

Answer 8

Food is taken in through the mouth

Question 9

There are 2 types of digestion: What are they called?

Answer 9

Mechanical and Chemical

Question 10

What is mechanical digestion?

Answer 10

Food being broken up the teeth and tongue in the mouth and churned in the stomach by muscular movements.

Question 11

Chemical digestion is _____?

Answer 11

Food being broken down by enzymes

Question 12

What are the main enzymes?

Answer 12

Amylase, Protease and Lipase

Question 13

What is Amylase’s function?

Answer 13

It breaks carbohydrates e.g. starch in simple sugars e.g. glucose

Question 14

Amino acids are broken down by ______ from _____?

Answer 14

protease, proteins

Question 15

What breaks down fats into what?

Answer 15

Lipase breaks fats down to fatty acids and glycerol

Question 16

What happens in the mouth during digestion?

Answer 16

Food is mechanically digested by the teeth and the food is lubricated by saliva for swallowing.

Question 17

What enzyme is found in saliva?

Answer 17

Amylase

Question 18

What is peristalsis?

Answer 18

The process in which wave-like muscle contractions push food along the oesophagus from the mouth to the stomach

Question 19

How long does food remain in the stomach?

Answer 19

4 hours

Question 20

What is released by glands in the stomach wall?

Answer 20

Hydrochloric acid

Question 21

What enzyme is released in the stomach?

Answer 21

Protease

Question 22

What is the first part of the small intestine called?

Answer 22

The duodenum

Question 23

Where is bile stored?

Answer 23

in the Gall Bladder

Question 24

Where is bile made?

Answer 24

In the liver

Question 25

Where is bile released into?

Answer 25

The duodenum

Question 26

What enzymes are in the pancreas?

Answer 26

Protease, Amylase and Lipase

Question 27

What is the alternate name for the ileum?

Answer 27

The small intestine

Question 28

The ileum is where absorption occurs, true or false?

Answer 28

True

Question 29

What is the surface area of the ileum and what length is it?

Answer 29

apx. 300m/2 and 7m long

Question 30

What increases the surface area of the ileum?

Answer 30

Villi

Question 31

What happens in the Colon (large intestine)?

Answer 31

Most of the remaining Water is reabsorbed. Whatever’s left is called faeces. Faeces is stored in the rectum before being passed out through the anus. This is egestion.

Question 32

What is the correct order of Digestion?

A. digestion, absorption, egestion, ingestion, assimilation

B. ingestion, digestion, assimilation, absorption, egestion

C. ingestion, digestion, absorption, assimilation, egestion

D. assimilation, digestion, ingestion, absorption, egestion

Answer 32

C

Question 33

Where does the digestive system start?

Answer 33

The mouth

Question 34

What is the purpose of acid in the stomach?

Answer 34

To kill germs and activate enzymes that digest protein