Organisms

Question 1

What is the word equation for aerobic respiration?

Answer 1

Glucose+energy-> energy + carbon dioxide +water

Question 2

Where does aerobic respiration take place

Answer 2

In the mitochondria

Question 3

What is anaerobic respiration

Answer 3

Respiration without oxygen

Question 4

What is the equation for fermentation

Answer 4

Glucose-> ethanol+carbon dioxide+energy released

Question 5

Why does anaerobic respiration happen

Answer 5

During vigourous activities when muscles are working hard the blood system cannot bring glucose and oxygen quickly enough

Question 6

What is the equation for anaerobic respiration

Answer 6

Glucose -> lactic acid + Energy released

Question 7

Why are leaves green

Answer 7

Most leaves are green as they contain chlorophyll which absorbs sunlight

Question 8

What is the function of a stomata

Answer 8

There are tiny holes pores down on the bottom surface of the leaf the function is to allow gases to diffuse into and out of the leaf carbon dioxide defuses in oxygen and water vapour defuse out

Question 9

Why do you leave to have a large surface areas

Answer 9

To absorb as much sunlight as possible

Question 10

What is the function of a Waxie layer

Answer 10

It reduces the amount of water evaporating out of the part of the leaf

Question 11

What is the function of the chloroplast

Answer 11

It is where photosynthesis takes place it contains chlorophyll that absorbs sunlight

Question 12

What is the function of the Gaurd cell

Answer 12

They are found around the stomata and they open the stomata during the day and close in the night

Question 13

If a plant doesn’t have enough nitrogen what will happen

Answer 13

The plan will have a stunted growth

Question 14

What happens when there is not enough phosphorous

Answer 14

The leaves will turn purple and they will have poor root growth

Question 15

Why is potassium needed

Answer 15

Lack of potassium leads to dead patches and yellowness

Question 16

What is magnesium needed

Answer 16

Lack of chlorophyll won’t let them to photosynthesise and magnesium is essential for the creation of chlorophyll

Question 17

What affects photosynthesis

Answer 17

Light intensity CO2 levels temperature -enzymes denaturing

Question 18

What is carbon dioxide

Answer 18

A wasted product that is exchanged with oxygen

Question 19

What is breathing

Answer 19

The movement of oxygen and carbon dioxide into and out of the lungs

Question 20

What is respiration

Answer 20

It’s the use of oxygen to release energy

Question 21

How much oxygen do we inhale

Answer 21

21%

Question 22

How much oxygen do we exhale

Answer 22

16%

Question 23

How much carbon dioxide do we inhale

Answer 23

0.03%

Question 24

How much carbon dioxide do we exhale

Answer 24

4%

Question 25

How Nitrogen do you we inhale and exhale

Answer 25

79%

Question 26

What is a drug

Answer 26

Any chemical taking into the body that changes the way the body or mind works

Question 27

What are Medicinal drugs

Answer 27

Drugs that help people that are suffering from pain or disease

Question 28

What are recreational drugs

Answer 28

Drugs that are taken for pleasure

Question 29

What are the four main categories of drugs

Answer 29

Painkillers hallucinogens stimulants depressants

Question 30

What are the 5 main nutrients

Answer 30

WCarbohydrates protein fats vitamins and minerals

Question 31

What is fibre

Answer 31

Cleansing your intestine is prevents constipation

Question 32

Why do we need carbohydrates

Answer 32

For energy

Question 33

Why do we need proteins

Answer 33

For growth and repair

Question 34

Why do we need fats

Answer 34

To store energy

Question 35

Why do we need vitamins and minerals

Answer 35

To keep the body healthy

Question 36

Why do we need water

Answer 36

For cells and body fluids

Question 37

What are enzymes

Answer 37

Chemicals that breaks down large insoluble food molecules into smaller soluble molecules

Question 38

What type of enzyme breaks down carbohydrates into smaller sugars

Answer 38

Carbohydrase

Question 39

What enzyme breaks down protein to amino acids

Answer 39

Protease

Question 40

What enzyme breaks down fat into fatty acids and glycerol

Answer 40

Lipase

Question 41

Where are enzymes made

Answer 41

Pancreas

Question 42

What is a reagent

Answer 42

Chemicals used to detect the nutrients in the food

Question 43

What does iodine test for and what colour is it before and after

Answer 43

For starch Yes- blue black No- orange brown

Question 44

What does biuret identify and what colour if yes or if none

Answer 44

Protein Yes-lilac No-blue

Question 45

What does Benedicts test for and what colours

Answer 45

Glucose No-blue Yes-orange/red

Question 46

What does ethanol test for and what colours

Answer 46

Lipids Yes- milky colour No-clear

Question 47

Where is carbohydrase made

Answer 47

Pancreas and salivary glands

Question 48

Where is protease made

Answer 48

Stomach and pancreas

Question 49

Where is lipase made

Answer 49

Salivary gland and pancreas

Question 50

What conditions are needed for carbohydrase to work

Answer 50

Body temperature

Question 51

What conditions are needed for protease to work

Answer 51

Acidic conditions ph 1-7

Question 52

What conditions are needed for lipase to work

Answer 52

Body temperature

Question 53

What is bile

Answer 53

From the gall bladder. Let’s the fats and water to mix by braking the fat into smaller droplets