Digestion And Food Tests

Question 0

What is a stroke?

Answer 0

The loss of brain function arising when the blood supply to the brain is suddenly interrupted

Question 1

What is a heart attack?

Answer 1

The result of a blocked coronary artery which supplies the heart with oxygen and glucose

Question 2

What are processed foods?

Answer 2

Often contain additives, artificial flavours and other chemical ingredients

Question 3

What is the test for starch?

Answer 3

Iodine Test

Question 4

What are the colour changes in the iodine test?

Answer 4

Orange/yellow to blue/black

Question 5

What is the test for sugar?

Answer 5

Benedict’s Test

Question 6

What are the colour changes in the Benedict’s test?

Answer 6

Blue to green to brick red

Question 7

What is the test for protein?

Answer 7

Biuret test

Question 8

What are the colour changes in the Biuret test?

Answer 8

Pale blue to violet

Question 9

What is the test for fat?

Answer 9

Emulsion test

Question 10

What are the changes in the emulsion test?

Answer 10

Water becomes cloudy especially at the top

Question 11

How do you work out the energy in food?

Answer 11

Rise in temperature x volume of water x 4.2

Question 12

How many KJs are in 1g of Protein?

Answer 12

17kJ

Question 13

How many kJs are in 1g of Fat?

Answer 13

37kJ

Question 14

How many kJs are in 1g of Carbohydrates?

Answer 14

17kJ

Question 15

What are the incisors?

Answer 15

Found at the front of mouth

Used to bite

Question 16

What are the canines?

Answer 16

Found at the side of the mouth

Used for tearing

Question 17

What are the premolars and molars?

Answer 17

Found at the back of mouth

Used for chewing and grinding

Question 18

What is enamel?

Answer 18

The outer covering of a tooth which is very hard

Question 19

What is dentine?

Answer 19

Found below the enamel

Contains living cells

Question 20

What is the pulp cavity?

Answer 20

Contains nerves and blood vessels

Question 21

What is the cement and periodontal fibres?

Answer 21

Holds the tooth in the socket

Question 22

What is ingestion?

Answer 22

Food is taken through the mouth

Question 23

What is digestion?

Answer 23

The food broken down from insoluble to soluble substances

Question 24

What is assimilation?

Answer 24

Soluble products taken to cells and used

Question 25

What is egestion?

Answer 25

Food removed out of anus

Question 26

What is mechanical digestion?

Answer 26

Food is broken up by the teeth and tongue and churned in the stomach by muscular movements

Question 27

What is chemical digestion?

Answer 27

Food is broken down by enzymes

Question 28

What are enzymes?

Answer 28

They speed up the chemical reaction without being used up

Question 29

What is amylase?

Answer 29

Breaks down starch into glucose

Question 30

What is protease?

Answer 30

Breaks down proteins into amino acids

Question 31

What is lipase?

Answer 31

Breaks down fat into fatty acids and glycerol

Question 32

What is the first part of the digestive system?

Answer 32

The mouth

Question 33

What happens in the mouth?

Answer 33

Food is mechanically digested by the teeth | Food is mixed with saliva which lubricates the food for swallowing

Question 34

What is the second part of the digestive system?

Answer 34

The oesophagus

Question 35

What happens in the oesophagus?

Answer 35

Food is pushed along this tube form the mouth to the stomach by waves of muscles in a process called peristalsis

Question 36

What is peristalsis?

Answer 36

The muscle contraction and relaxation moving the food through the digestive system

Question 37

What is the third part of the digestive system?

Answer 37

The stomach

Question 38

What happens in the stomach?

Answer 38

Food stays in the stomach for about 4 hours Food is mechanically digested by the constant muscle contraction Glands in stomach wall release hydrochloric acid which kills germs

Question 39

What is the fourth part of the digestive system?

Answer 39

Digestion in the small intestine, liver and pancreas

Question 40

What is the small intestine?

Answer 40

The longest part of the digestive system

Question 41

What is duodenum?

Answer 41

First part of the small intestine

Question 42

What is the gall bladder?

Answer 42

This is where bile is stored after it has been made in the liver

Question 43

What is emulsion?

Answer 43

Formed when fat is broken down into smaller droplets which. Increase the surface area for enzymes to function

Question 44

What is the pancreas?

Answer 44

Contains amylase, protease and lipase

Question 45

What is the ileum?

Answer 45

The small intestine where digestion is completed

Question 46

What happens in the small intestine, liver and pancreas?

Answer 46

Blue is made in your liver and stored in your gall bladder | It is released into the duodenum and because it's alkaline, it helps to neutralise the stomach acid

Question 47

What is the fifth part of the digestive system?

Answer 47

Absorption

Question 48

What is absorption?

Answer 48

The movement of digested food into molecules from the intestines to the blood

Question 49

What is villi?

Answer 49

Finger-like projections which increase the surface area for absorption

Question 50

What is the sixth part of the digestive system?

Answer 50

The large intestine

Question 51

What happens in the large intestine?

Answer 51

All that is left of the food is a wet mixture of indigestible fibre, bacteria and dead cells which have rubbed off the lining of the gut wall Most of the remaining water is reabsorbed into the bloodstream

Question 52

What is reabsorption?

Answer 52

In the large intestine, water is reabsorbed back into the blood

Question 53

What is the last part of the digestive system?

Answer 53

Excretion

Question 54

What is excretion?

Answer 54

The removal of toxic metabolic waste substances produced through chemical reactions in the body