*Diet&Digestion

Question 1

How many nutrient groups are there?

Answer 1

7

Question 2

Name the 7 nutrient groups

Answer 2

Carbohydrates
Proteins
Fats
Vitamins
Minerals 
Water
Fibre

Question 3

Give an example of Carbohydrates

Answer 3

Starchy foods eg/ pasta, bread ,rice

Question 4

Give an example of proteins

Answer 4

Chicken, fish, beans

Question 5

Give an example of Fats

Answer 5

Fried foods, butter, chocolate

Question 6

Give an example of vitamins

Answer 6

Vitamin A,B,C

Question 7

Give examples of minerals

Answer 7

Calcium, iron

Question 8

Give examples of water

Answer 8

All drinks, fresh fruit

Question 9

Give examples of fibre

Answer 9

Cereals, wholemeal

Question 10

What do carbohydrates do?

Answer 10

Give us energy

Question 11

What do proteins do?

Answer 11

Growth and repair

Question 12

What do fats do?

Answer 12

Give us energy and insulation

Question 13

What do vitamins do?

Answer 13

Helps with good eye sight

Question 14

What do minerals do?

Answer 14

Helps bones and teeth and keeps red blood cells healthy

Question 15

What does water do?

Answer 15

Keep us healthy and hydrated

Question 16

What does fibre do?

Answer 16

Adds bulk to food, gives us energy and keeps us healthy

Question 17

What is a deficiency of carbohydrates

Answer 17

Starvation if too little

Question 18

What is a deficiency of protein?

Answer 18

Kwashiorkor

Question 19

What is a deficiency of fat

Answer 19

Starvation if too little

Question 20

What is a deficiency of vitamins

Answer 20

Problems seeing in low light

Question 21

What is a deficiency of minerals

Answer 21

Anaemia

Question 22

What is a deficiency of water

Answer 22

Dehydration

Question 23

What is a deficiency of fibre

Answer 23

Prevents constipation and bowel cancer

Question 24

What does malnutrition mean

Answer 24

That a diet is not balanced, a person my be having too much or too little of a particular food group

Question 25

What does starvation mean

Answer 25

When a person does not eat enough of any food, this causes tiredness

Question 26

What is the name of the test for starch?

Answer 26

Iodine test

Question 27

What is the name of the test for sugar

Answer 27

Benedicts test

Question 28

What is the name of the test for protein

Answer 28

Biuret test

Question 29

What is the name of the test for fat

Answer 29

Paper spot test

Question 30

What colour does the starch test turn out as

Answer 30

Orange/yellow to blue/black

Question 31

What colour does the test for sugar turn out as

Answer 31

Turns from blue to green to brick red

Question 32

What colour does the test for protein turn out as

Answer 32

Starts a pale blue and turns to violet

Question 33

What colour does the test for fat turn out as

Answer 33

It leaves a greasy translucent stain on the paper where fat is present

Question 34

What is a healthy diet and why should you not eat too much fat

Answer 34

A healthy diet is a balance of all the food groups and getting your 5 a day, eating too much fat is unhealthy because consumer is too much can result in obesity

Question 35

Why is digestion necessary

Answer 35

The food we eat must be broken down into small soluble molecules before they can be absorbed into the blood stream

Question 36

What are the 5 stages of digestion

Answer 36

``` Ingestion Digestion Absorption Assimilation Egestion ```

Question 37

Name the 3 types of enzymes

Answer 37

Amylase Protease Lipase

Question 38

What does Amylase do

Answer 38

Breaks down carbohydrates e.g starch into simple sugars

Question 39

What does protease do

Answer 39

Breaks down proteins into amino acids

Question 40

What does Lipase do

Answer 40

Breaks down fats into fatty acids and glycerol

Question 41

What is peristalsis

Answer 41

The process of wave-like muscle contractions of the alimentary tract that moves food along

Question 42

How are germs killed in the stomach

Answer 42

Glands in the stomach wall release hydrochloric acid

Question 43

How is the surface area of the digestive system increased in the ileum ( small intestine)

Answer 43

To help food to pass into the bloodstream the small intestine has a massive surface area of 300m for the absorption of digested food. The inner walls are folded so there is a larger surface

Question 44

How can the products of digestion be carried round the body

Answer 44

The soluble products ie glucose and amino acids are then absorbed through the intestinal wall into the blood where they are carried to cells throughout the body to provide energy