Biology: Organisation Flashcards

1
Q

What is the order of organisation? (smallest to largest)

A

Cell–>Tissues–>Organs–>Organ System

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2
Q

What is a Tissue?

A

Group of similar cells that work together to carry out a particular function

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3
Q

What is an Organ?

A

Group of different tissues that work together to perform a certain function

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4
Q

What is an Organ System?

A

Group of Organs that work together to perform a certain function

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5
Q

What is an Enzyme?

A

A Catalyst in the body that breaks down food substances

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6
Q

What is a Catalyst?

A

Substance which increases the speed of a reaction without being changed or used up in the reaction

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7
Q

What do Enzymes attach to?

A

Substrates

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8
Q

What is the name of theory relating to enzymes and substrates

A

Lock and Key Theory

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9
Q

What can happen to Enzymes at high temperatures?

A

Denatured

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10
Q

What enzyme converts Carbohydrates into Simple Sugars?

A

Carbohydrase

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11
Q

What enzyme converts Protein into Amino Acids?

A

Protease

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12
Q

What enzyme converts Lipids into Glycerol and Fatty Acids?

A

Lipase

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13
Q

What Carbohydrase breaks down Starch?

A

Amylase

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14
Q

What Protease is found in the stomach?

A

Pepsin

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15
Q

Where can you find Carbohydrase?

A

Stomach, Pancreas, Small Intestine

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16
Q

Where can you find Protease?

A

Stomach, Pancreas, Small Intestine

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17
Q

Where can you find Lipase?

A

Pancreas, Small Intestine

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18
Q

What are the 10 organs part of the Digestion system?

A

Salivary Glands, Oesophagus, Stomach, Liver, Gall Bladder, Pancreas, Large Intestine, Small Intestine, Rectum, Anus

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19
Q

What is stored in Gall Bladder

A

Bile

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20
Q

What happens in the stomach?

A

Breaks down food into smaller chunks, Produces enzyme like Pepsin, Produces HCl to kill bacteria and give right pH for enzyme to work.

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21
Q

What is absorbed in the Small intestine?

A

Minerals and water

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22
Q

What is absorbed in the Large Intestine?

A

Excess water

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23
Q

What are the two sides of the heart?

A

Oxygenated left, Deoxygenated right

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24
Q

What are the four parts of the Heart?

A

Right atrium, Right Ventricle, Left atrium, Left ventricle

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25
Q

What are the four connections to the heart?

A

Aorta, Pulmonary vein, Vena cava, Pulmonary artery

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26
Q

What is the function of the pulmonary vein?

A

Carry oxygenated from lungs to heart

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27
Q

What is the function of the pulmonary artery?

A

Carry deoxygenated blood from heart to loungs

28
Q

What is the function of most arteries

A

Carry oxygenated blood around the body away from the heart

29
Q

What is the function of most veins

A

Carry deoxygenated blood around the body towards to the heart

30
Q

What are the three types of blood vessels

A

Arteries, Capillaries, Veins

31
Q

How are arteries adapted to carry blood under pressure

A

Strong elastic walls, Walls are thick compared to lumen

32
Q

How are capillaries adapted?

A

Thin wall only one cell thick, Very small lumen, Permeable walls so substances can diffuse between

33
Q

How are veins adapted?

A

Bigger lumen to keep pressure low and use valves to prevent blood turning around

34
Q

What is the function of Red Blood Cells

A

Carry oxygen around the body

35
Q

How is a Red Blood Cell adapted

A

Large surface area, dont have nucleus, haemagoblin bonds with oxygen

36
Q

What is the function of White Blood Cells

A

Defends against infection

37
Q

How are White Blood Cells adapted

A

Phagocytes consume infections, Antibodies attach to antigens, Antitoxins neutralise toxic substances

38
Q

What is the function of Platelets

A

Clot blood cells to slow down and prevent bleeding

39
Q

What is the function of Plasma

A

Carry various substances such as red blood cells, white blood cells, platelts, nutrients etc

40
Q

What is coronary heart disease

A

When the coronay arteries that supply blood to the muscle of the heart get blocked by layers of fatty material like cholesterol.

41
Q

What can reduce cholesterol in the blood

A

Statins

42
Q

What is a Communicable disease

A

A disease that can spread between people by vectors

43
Q

What is a Non-Communicable disease

A

A disease that cant be spread from person to person that can only be caught via genetics, environment

44
Q

What are the four types of communicable disease

A

Bacteria, Virus, Fungi, Protist

45
Q

Give examples of Bacterial Diseases

A

Salmonella, Gonorrhoea

46
Q

Give examples of Viral infections

A

HIV, Tobacco Mosaic Virus, Measles

47
Q

Give an example of Fungal infections

A

Rose Black spot

48
Q

Give an example of Protist

A

Malaria

49
Q

What is the transmission of TMV

A

Contact with diseased plant material

50
Q

What is the symptoms of Measles

A

Fever, Red skin, Blindness, May be fatal, Brain Damage

51
Q

What is the symptoms of Malaria

A

Recurrent episodes of fever and shaking, Death

52
Q

What is a risk factor

A

Something that is linked to an increase in the likelihood that a person will contract a disease

53
Q

Give an example of a Risk factor commonly associated with cancer

A

Smoking

54
Q

What is cancer

A

Uncontrolled cell growth and division

55
Q

What is Benign cancer

A

Cancer contained within the cell membrane

56
Q

What is Malignant Cancer

A

Cancer that is spread through the body via the blood

57
Q

What are the five cells in a plant

A

Epidermal cell / Palisade mesophyll cell / Spingy Mesophyll / Stomata / Guard cell

58
Q

What is the Epidermal tissue

A

Top layer of cell that covers the whole plant

59
Q

What is the Palisade mesophyll tissue

A

Part of the leaf where photosynthesis happens

60
Q

What is the Spongy Mesophyll tissue

A

Contains big air spaces to allow gases to diffuse in and out of cells

61
Q

How does the epidermal tissue help the plant

A

Helps reduce water loss by evaporation

62
Q

How does the Palisade help the the plant

A

Has lots of chloroplasts since they get lots of light

63
Q

How does the Spongy mesophyll tissue help the plant

A

Contains air sacs that help increase rate of diffusion

64
Q

What is Transpiration

A

Loss of water from a plant

65
Q

What is Translocation

A

Movement of food substances within a plant

66
Q

What 4 things affect transpiration

A

Light intensity / Temperature / Air Flow / Humidity

67
Q

How are guard cells adapted

A

The guard cells become flaccid when the plant needs water and is light sensitive to help save water