S2 Biology Modlue 2

Question 1

What are the 7 nutrients

Answer 1

Carbohydrates
Fibre
Protein
Fats
Vitamins
Minerals
Water

Question 2

What is a balanced diet

Answer 2

A diet containing the correct amount of each of the 7 nutrients

Question 3

What do carbohydrates supply us with

Answer 3

Energy

Question 4

What are the 2 types of carbohydrates

Answer 4

Fast releasing - sugars
Slow releasing - starch

Question 5

What is fibre and what does it help us do

Answer 5

Fibre is also a carbohydrate and helps our digestive system

Question 6

What do proteins do

Answer 6

They help us grow and repair

Question 7

What do fats provide us with

Answer 7

Energy that can be stored
Insulation

Question 8

What do vitamins and minerals do

Answer 8

Prevent certain diseases

Question 9

Why is water needed

Answer 9

Chemical reactions like transporting materials e round the body

Question 10

What is malnutrition and why does it occur

Answer 10

It occurs when ur diet is lacking a certain nutrient

Question 11

What are deficiency diseases caused by

Answer 11

Lack of a certain vitamin or mineral

Question 12

What disease is caused by a lack of vitamin A and what are the effects

Answer 12

Night blindness
Blurry vision
Trouble seeing

Question 13

What disease is caused by lack of calcium and what are its effects

Answer 13

Rickets
Soft deformed bones

Question 14

What disease is caused by a lack of vitamin c and what are its effects

Answer 14

Scurvy
Bleeding gums
Swollen

Question 15

What disease is caused by a lack of protein

Answer 15

Kwashiorkor
Swelling
Pot belly

Question 16

What disease is caused by lack of iron and what are its effects

Answer 16

Anemia
Tiredness and lack of energy

Question 17

What is the test for starch

Answer 17

If iodine solution turns blue/black starch is present

Question 18

What is the test for reducing sugar

Answer 18

Benedict’s solution and heated if sugar is present it’ll turn blue-orange

Question 19

What is the test for protein

Answer 19

Biurets solution
It changes from blue to purple if present

Question 20

What are the 2 types of carbohydrates

Answer 20

Low releasing
Fast releasing

Question 21

What are complex carbohydrates made up of

Answer 21

Small units called sugar molecules

Question 22

What are proteins made up of

Answer 22

Small units called amino acid

Question 23

What are fats made up of

Answer 23

Subunits called fatty acids and glycerol

Question 24

What are teeth used for

Answer 24

Bite
Chew
To mechanically break large pieces into smaller ones

Question 25

What are the 4 teeth

Answer 25

Molars
Pre-molars
Insidsers
Canines

Question 26

What do canines do

Answer 26

Ripping and tearing

Question 27

Incisors

Answer 27

Cutting and slicing

Question 28

Pre-molars and molars

Answer 28

Crushing and grinding

Question 29

What is digestion

Answer 29

The process by which large insoluble molecules are broke. Down chemically into small soluble molecules that can be absorbed into the blood

Question 30

What is the digestive system

Answer 30

Alimentary canal , a long muscular tube running from the mouth to the anus

Question 31

What is the stomach made of

Answer 31

Layers of muscle

Question 32

What do the layers in the muscle do

Answer 32

They churn and mix the food by contracting and relaxing

Question 33

Where are the products of digestion absorbed

Answer 33

Into the blood stream

Question 34

Why does the small intestine have folds

Answer 34

So the food touches the folds and has more contact

Question 35

Why does the small intestine have lots of blood vessels

Answer 35

So that the product can be absorbed into the blood stream

Question 36

What does large intestine absorb

Answer 36

Water from the remaining undigested food

Question 37

What is ur wanted waste called

Answer 37

Faeces

Question 38

What do digestive juices contain

Answer 38

Enzyme

Question 39

What do enzymes do

Answer 39

Speed up chemical reactions

Question 40

what is the substance a enzyme acts on

Answer 40

Substrate