Biology

Question 1

Protein

Answer 1

Provides amino acids needed for growth and energy

Question 2

Carbohydrates

Answer 2

Provides energy

Sugar is a carbohydrate

Question 3

Fat

Answer 3

Provides acids that help keep a normal structure of cells in the body and gives energy

Question 4

Calcium

Answer 4

Helps build up strong bones and teeth

Question 5

Fibre

Answer 5

Provides bulk in the diet

For peristalsis in the digestive system

Question 6

Iron

Answer 6

Helps to make red blood cells that carry blood and oxygen around the body

Question 7

Vitamin d

Answer 7

Helps the body to absorb calcium and keeps bones strong

Question 8

Vitamin c

Answer 8

Required for wound healing

Question 9

What do you use to test for starch

Answer 9

Iodine

Question 10

Define ingestion

Answer 10

When food enters the digestive system via the mouth

Question 11

Define digestion

Answer 11

Breaking down the larger molecules into smaller more digestible molecules

Question 12

Define absorption

Answer 12

The mouvement of the digested food molecules going through the intestine into the blood

Question 13

Define assimilation

Answer 13

The food moving into the cells

Question 14

Define Egestion

Answer 14

When what is left of the food passes through your body

Question 15

What does the digestive system do?

Answer 15

The digestive system’s function is to digest large insoluble molecules into smaller more soluble molecules so that then they can be absorbed from the small intestine into the blood

Question 16

Name the organs of the digestive system and were they are

Answer 16

Mouth, œsophages, liver, stomach, small intestine, pancreas, gall bladder

Question 17

What do enzymes do?

Answer 17

They break larger insoluble molecules into smaller more soluble molecules

Question 18

With the exception of pepsin in the stomach, what pH do most enzymes work best in?

Answer 18

Neutral, pH 7

Question 19

Name the enzyme in saliva and it’s job

Answer 19

Amylase and it breaks down starch into sugars

Question 20

What is the name for muscular contractions that squeeze/move food through the digestive system

Answer 20

Peristalsis

Question 21

What is the name of the enzyme that is in the stomach

Answer 21

Pepsin

Question 22

Why is stomach important

Answer 22

It kills any harmful bacteria that you may have eaten

Question 23

2 important processes in the digestive system

Answer 23

Digestion and absorption

Question 24

Give one way in which the small intestine is adapted to its role

Answer 24

Large surface area, only one cell thick and a good blood flow to each villi

Question 25

Why do you need protein in your diet

Answer 25

As it provides amino acids needed fore growth and energy

Question 26

Name 2 good sources of protein

Answer 26

Fish, red meat

Question 27

Name 2 good sources of carbohydrates

Answer 27

Bread, pasta

Question 28

Why do we need fat in our diet

Answer 28

They provides acids that help keep a normal structure of cells in the body and gives energy

Question 29

Name 2 good sources of fat

Answer 29

Butter, oil

Question 30

Why do we need calcium

Answer 30

It helps build strong bones and teeth

Question 31

Name a good source of calcium

Answer 31

Milk

Question 32

Why is vitamin c important

Answer 32

It is required for wound healing

Question 33

Name a good source of vitamin c

Answer 33

Oranges

Question 34

What is pepsin

Answer 34

It is the the enzyme produced in the stomach

Question 35

Define ingestion

Answer 35

When food enters the digestive system through the mouth then it is chewed to form the bolus then then it goes down the œsophages (the tube that goes from the mouth to the stomach) and into the stomach

Question 36

Name the organs of the digestive system

Answer 36

Mouth, oesophagus, liver, stomach, large intestine, small intestine, pancreas, gall bladder