Human Body

Question 1

Name the 7 components of a healthy diet

Answer 1

Carbohydrates, Lipids, Proteins, Vitamins, Minerals, Water,
Fibre

Question 2

What are lipids?

Answer 2

Fats and oils

Question 3

What does the body use lipids for?

Answer 3

Energy, Insulation and protection of organs

Question 4

What does the body use protein for?

Answer 4

Growth and repair of body tissues

Question 5

What does the body use vitamins and minerals for?

Answer 5

Keeping you healthy in small amounts

Question 6

What does the body use water for?

Answer 6

Prevention of dehydration because all cells in the body contain water

Question 7

What does the body use fibre for?

Answer 7

Prevention of constipation as it keeps the food moving through the digestive system

Question 8

What would you use to test food for starch?

Answer 8

Add iodine

Question 9

What would show that starch is present

Answer 9

It would turn into a blue/black color

Question 10

How would you test solid food for lipids

Answer 10

Rub the solid foods on apiece of filter paper. Hold it in light and If it goes transparent it means that the lipids are there

Question 11

How do you make a solution of food

Answer 11

Crush the food and mix it really well with water

Question 12

How do you test food for sugar

Answer 12

Add a few drops of bendicts solutions and heat it up in a water bath

Question 13

How do you know if sugar is present in food

Answer 13

When you add some benedicts solution it will turn orange/red

Question 14

How do you test food for protein

Answer 14

You add buirets solution to the food

Question 15

How do you know if protein is present in food

Answer 15

When you add the buirets solution, it will turn purple

Question 16

What is the energy in food measured in

Answer 16

Joules

Question 17

What is a kilojoule

Answer 17

1000 joules

Question 18

What do we suffer if we have no food

Answer 18

Starvation

Question 19

What do we become if we do not eat enough

Answer 19

Underweight

Question 20

Give 3 problems caused by being underweight

Answer 20

Poor immune system
Lack of energy
Lack of vitamins/ minerals

Question 21

What do we become if we eat too much food or foods containing a lot of fat

Answer 21

Overweight

Question 22

What Do we call someone who is extremely overweight

Answer 22

Obese

Question 23

Give 4 problems caused by being overweight

Answer 23

Heart disease
Some cancers
Diabetes
Stroke

Question 24

What is the term for being short of a certain vitamin or mineral

Answer 24

Deficiency

Question 25

Waht does a deficiency of vitamin A cause

Answer 25

Night blindness so they are unable to see in dim light

Question 26

What does a vitamin D deficiency cause

Answer 26

Rickets meaning weak bones

Question 27

How does more exercise affect the amount of energy you need

Answer 27

It increases the amount of energy you need

Question 28

What happens during digestion

Answer 28

Large molecules are broken down into smaller ones

Question 29

Why does digestion make larger molecules into smaller ones

Answer 29

In order for it to pass into the blood

Question 30

What is an enzyme

Answer 30

A biological catalyst meaning something that speeds up chemical reactions without being used up

Question 31

What do enzymes do in digestion

Answer 31

They break down larger molecules into smaller ones

Question 32

Name 3 enzymes

Answer 32

Carbohydrase Protease Lipase

Question 33

What does carbohydrase do

Answer 33

Breaks down carbohydrates such as starch down into sugar molecules

Question 34

What does protease do

Answer 34

Breaks down proteins into amino acids

Question 35

What does lipase do

Answer 35

Breaks down lipids into fatty acids and glycerol

Question 36

What does bile do

Answer 36

Helps lipase to work by breaking lipids into smaller droplets which are easier to work on

Question 37

What does the small intestine do

Answer 37

Absorbs glucose from food into the blood

Question 38

Which part of the blood transports the glucose

Answer 38

The Plasma

Question 39

What is the Plasma

Answer 39

The liquid part of the blood

Question 40

What do red blood cells contain which carries oxygen

Answer 40

Haemoglobin

Question 41

Which part of the blood carries Carbon Dioxide

Answer 41

The Plasma

Question 42

What process releasesenergy from food without oxygen

Answer 42

Anaerobic Respiration

Question 43

What do humans make during Anaerobic Respiration

Answer 43

Lactic Acid

Question 44

What does lactic acid cause

Answer 44

Muscle Cramps

Question 45

What is oxygen debt

Answer 45

Breathing heavily after exercise to get oxygen to break down lactic acid

Question 46

What are the products of Anaerobic Repiration in yeast

Answer 46

Ethanol Carbon Dioxide

Question 47

What do we call Anaerobic Respiration in yeast

Answer 47

Fermentation