Organisation Flashcards

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1
Q

What does the mouth do?

A

Chemically and physically digest the food

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2
Q

What does the salivary gland do?

A

It produces amylase to break down the food

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3
Q

What does the liver do?

A

It makes bile

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4
Q

What does the gall bladder do?

A

Store the bile

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5
Q

What does the stomach do?

A

It breaks down food with acid and enzymes

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6
Q

What does the pancreas do?

A

Releases and produces enzymes

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7
Q

What does the small intestine do?

A

The nutrients are absorbed into the blood

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8
Q

What does the large intestine do?

A

It absorbs the waste water

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9
Q

What does the rectum do?

A

Faeces is stored here

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10
Q

What does the anus do?

A

Releases the faeces when you need the toilet

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11
Q

What enzymes does the pancreas produce?

A

Protease, amylase and lipase

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12
Q

What does bile do?

A

Breaks down large globules of fat into smaller ones

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13
Q

What does bile do to the pH?

A

Bile is alkaline so it increases the pH making it right conditions for the enzymes to work

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14
Q

How to test for glucose?

A

Equal vol of benedict’s solution to the food
Heat for 5mins
If it turns red glucose is present

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15
Q

How to test for starch?

A

Add a few drops of iodine to the food sample

Shake if it turns a blue/black starch is present

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16
Q

How to test for proteins?

A

Add equal vol of biuret solution

Shake and if it turns to purple protein is present

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17
Q

Where can enzymes been found?

A

Stomach
Saliva
Small intestine

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18
Q

What is the dent called in an enzyme?

A

Active site

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19
Q

What is the molecule called that fits into the active site?

A

Substrate

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20
Q

What does the enzyme make the substrate do?

A

React creating products

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21
Q

What two main factors affect enzyme action?

A

Temperature

pH

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22
Q

What happens when the temperature increases too much?

A

The enzymes active site denatures so the substrate can’t fit into the enzyme

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23
Q

What happens when you increase the temperature?

A

The rate of the reaction increase because their is lots of kinetic energy so the enzymes and substrates collide more

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24
Q

What is a tissue?

A

A group of cells that have a similar structure and function

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25
Q

What is an organ?

A

A group of tissues that have a specific function

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26
Q

What is metabolism?

A

The sum of all reactions in a cell or in the body

27
Q

How are digestive enzymes different?

A

The work outside of your cells
Are released from specialised cells in glands
Secreted onto food travelling through the digestive system

28
Q

What is protein broken down by and into?

A

Broken down by protease and into amino acids

29
Q

What is starch broken down by and into?

A

Broken down by amylase into glucose

30
Q

What is fat broken down by and into?

A

Broken down by lipase into glycerol and fatty acids

31
Q

Where is protease produced?

A

The stomach and pancreas

32
Q

Where is amylase produced?

A

Pancreas and salivary gland

33
Q

Where is lipase produced?

A

Pancreas

34
Q

Name the 4 chambers in the heart

A

Right atrium and left atrium

Right ventricle and right ventricle

35
Q

Why is the left side of the heart more muscular?

A

As the left side needs to contract and pump blood around the whole body

36
Q

Name the three blood vessels

A

Arteries
Capillaries
Veins

37
Q

Why do we have platelets?

A

To help the blood clot

38
Q

Why do we have white blood cells?

A

To help fight infection

39
Q

Why do we have red blood cells?

A

To carry oxygen around the body

40
Q

What do the arteries do?

A

They carry oxygenated blood away from the heart to capillaries

41
Q

Name an artery

A

Pulmonary artery

42
Q

What do capillaries do?

A

Carry oxygenated blood from the arteries to the cells and carry deoxygenated blood from the cells to the veins

43
Q

What do veins do?

A

Carry blood from the capillaries back to the heart and lungs

44
Q

How do you work out cardiac output?

A

Heart rate X stroke volume

45
Q

What does coronary heart disease do?

A

Narrows the arteries
Reduces blood flow
Reduces the amount of oxygen

46
Q

Why is oxygen required?

A

For respiration so the heart can contract

47
Q

What do faulty heart valves do?

A

Pressure cannot build up in the chambers
The heart must work harder
Blood may backflow or clot
Can cause strokes

48
Q

Name some heart treatments

A

Artificial pacemaker
Stents
Statins
Valve replacements

49
Q

What is breathing?

A

Ventilation NOT RESPIRATION

50
Q

What is ventilation?

A

The process of inspiration and expiration

51
Q

Describe inspiration

A

Ribs pull up and out
Volume of chest increases and diaphragm contracts
Increased volume lower pressure
Pressure is now less than outside of the lungs
Drawing air into the lungs
The lungs inflate

52
Q

Describe expiration

A
Ribs move down and inwards
Decrease volume and diaphragm relaxes
Decreased volume increases pressure
Pressure is now greater outside the lungs
Air is forced out of the lungs 
Lungs deflate
53
Q

What is health?

A

The state of physical and mental well being

54
Q

What are the risks factors of health?

A

Diet
Stress
Lifestyle
Exercise

55
Q

What is cancer caused by?

A

Uncontrollable cell growth and division

56
Q

What is a benign tumour?

A

This tumour stays in one place rather than invading other parts of the body

57
Q

What is a malignant tumour?

A

Cells can break off and invade other healthy tissues

58
Q

What is the risk factor of skin cancer?

A

Sun

59
Q

What is the risk factor of lung cancer?

A

Smoking

60
Q

What is risk factor of breast cancer?

A

Women

61
Q

What is the risk factor of cervical cancer?

A

Smoking

62
Q

What is the risk factor of testicular cancer?

A

Smoking

63
Q

What is the risk factor of brain tumours?

A

Age, alcohol