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Lilly > ๐’ฎ๐’ธ๐’พโ„ฏ๐“ƒ๐’ธโ„ฏโœฉ 1 > Flashcards

๐’ฎ๐’ธ๐’พโ„ฏ๐“ƒ๐’ธโ„ฏโœฉ 1 Flashcards

1
Q

Sign for lithium

A

Li

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2
Q

Sign for oxygen

A

O

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3
Q

Name the 5 things in a animal cell

A

Cytoplasm
Cell membrane
Ribosomes
Mitochondria
Nucleus

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4
Q

Explain what a cell membrane does

A

Its job is to control things that come on and out

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5
Q

Explain what mitochondria is

A

Where energy is released

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6
Q

Explain what the nucleus does

A

The nucleus contains DNA it is also the brain of the cell, it tells the cell what to do

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7
Q

Explain what cytoplasm is

A

Where the chemical reactions take place

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8
Q

Explain what ribosomes are

A

Ribosomes help to make protein

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9
Q

What are the 2 cells

A

Animal cells
Plant cells

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10
Q

What is temperature the measurement of?

A

Temperature is the measure of the hotness & coldness of a body.

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11
Q

What do you measure temperature in?

A

K- kelvin

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12
Q

How is density defined?

A

Density is defined as mass per unit volume

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13
Q

If it something floats is it less dense or more dense?

A

If an item floats it is the least dense. If it sinks it is the most dense

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14
Q

Name the 7 nutrients

A

Protein
Fat
Vitamins
Minerals
Fibre
Water
Carbohydrates

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15
Q

What does our body use protein for?

A

Growth maintenance/repair

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16
Q

What does fat do for our body?

A

Helps absorb vitamins/storing energy

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17
Q

What do vitamins and minerals do for our body?

A

Helps keep your body healthy

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18
Q

What does fibre do for our body?

A

Regulates bacteria in the gut

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19
Q

What does water do for our body?

A

Stops dehydration, dissolves nutrients

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20
Q

What do carbohydrates do for our body?

A

Energy

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21
Q

What is malnutrition?

A

Too much or too little of a nutrient in our diet

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22
Q

What are microorganisms

A

Microorganisms are tiny living things that usually can only be seen using a microscope

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23
Q

What do microorganisms include

A

Viruses
Bacteria
Microscopic fungi

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24
Q

What are mumps symptoms

A

Fever
Headache
Tiredness
Swollen tender/salivary glands
Swollen cheeks or jaw

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25
Q

What are pathogens

A

Pathogens are microorganisms that cause disease

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26
Q

Name 2 facts about viruses

A

Viruses cant exist without a host

Viruses cant be affected by antibiotics

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27
Q

What is this?

A

Explosive

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28
Q

What is this?

A

Oxidising

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29
Q

What is this?

A

Extremely/highly flammable

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30
Q

What is this?

A

Corrosive

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31
Q

What is this?

A

Dangerous for the enviroment

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32
Q

What is this?

A

Harmful/irritant

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33
Q

What is this?

A

Toxic/very toxic

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34
Q

What does a toxic substance mean?

A

Substances which can cause death if they are swallowed, breathed in or absorbed through the skin eg: weedkiller

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35
Q

What does a harmful or irritant substance mean?

A

Substances which should not be eaten, breathed in or handled without gloves. Though not as dangerous as toxic substances they might cause some rash, sickness or an allergic reaction

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36
Q

What does an oxidising substance mean?

A

Substances which provide oxygen, allowing other materials to burn more intensely eg: hair bleach

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37
Q

What does highly flammable substance mean?

A

Substances which which easily catch fire eg: petrol

38
Q

What does corrosive substance mean?

A

Substances which attack and destroy living tissue, including skin and eyes. Example: oven cleaner

39
Q

What does warning sign mean?

A

This sign is used to draw attention to a warning of danger, hazards and the unexpected

40
Q

What eye equipment needs to be worn?

A

Wear safety glasses to protect your eyes.

41
Q

Name the 7 parts of the microscope

A

Eyepiece
Objective lens
Clips
Stage
Light source
Coarse focus wheel
Fine focus wheel

42
Q

Name 6 things in the plant cell

A

Chloroplast
Vacuole
Cytoplasm
Cell membrane
Cell wall
Nucleus

43
Q

What does a chloroplast do

A

Photosynthesis happens here

44
Q

What does the cell wall do?

A

Provides protection and support to the cell

45
Q

What is the vacuole?

A

Storage container of the cell

46
Q

Explain all 7 steps of how to prepare a plant cell slide

A
  1. Remove the outer leaves of an onion
  2. Use your fingers to pull a strip of thin transparent epidermis from the inner leaf.
  3. Place a small piece of the epidermal strip in a microscope slide
  4. Add a few drops of iodine solution
  5. Add a cover slip, lower it at an angle
  6. Blot off any surplus iodine, if necessary
  7. The cell can be viewed unstained by using a few drops of water instead of iodine solution
47
Q

What is the SI unit for length?

A

Metres (m)

48
Q

What is the SI unit for mass

A

Kilogram (k)

49
Q

What is the SI unit for time

A

Seconds (s)

50
Q

What is the SI unit for current

A

Amps

51
Q

How to measure weight

A

Mass x gravity

52
Q

How to calculate area

A

Length x width

53
Q

How do you write area?

A

Cm2

54
Q

What is volume measured in?

A

Ml (millilitres)
Cm3 (centimetre cubed)

55
Q

Name the 6 methods for calculating volume

A

Pour some water into a measuring cylinder until it is half full

Carefully read the level of water

Tie the thread around the stone and gently lower it into the water until it sits at the bottom of the cylinder

Carefully read the new level of water

Subtract the first level from the second level to find the volume of the stone

Repeat using 2 different stones

56
Q

Area is calculatedโ€ฆ

A

Length x width x height

57
Q

What is mass measured in

A

Grams (g)

58
Q

Name the three states of matter

A

Solid
Liquid
Gas

59
Q

How is density defined

A

Density is defined as mass per unit volume

60
Q

What is density the measure of

A

How tightly packed or heavy the molecules are in an object

61
Q

Measurement of density?

A

G/cm3

62
Q

Write the 3 main procedures for calculating the density of an irregular shaped object

A

The mass of the stone is found by placing it on a balance

The volume of the stone is found by gently lowering it completely into a fled overflow can and noting the volume of water that flows out using a graduate cylinder

63
Q

Explain what a compound is

A

A compound is a substance that is made up from the atoms of two or more different elements chemically joined together

64
Q

what is respiration?

A

respiration is when red blood cells carry oxygen to all the cells in our body, where it is used to release energy from food.

65
Q

what happens during respiration (not the red blood cells)

A

During respiration Carbon dioxide and water vapour are produced in each body cell. They enter the bloodstream and are carried in the plasma to the lungs.

66
Q

Artery is close to the surface in the neck and wrist

A

True

67
Q

Cardiac muscle doesnโ€™t ___________ easily

A

Cardia muscle doesnโ€™t tire easily

68
Q

Which of the following veins contain very little carbon dioxide?
Pulmonary
Vena Cava
Renal
Hepatic portal

A

The pulmonary vein carries oxygenated blood from lungs to heart therefore contains little or no carbon dioxide

69
Q

A vessel in which enzymes are used to make a product is called a ____________

A

Bioreactor

70
Q

All enzymes are composed of proteins

A

True, all enzymes are made from proteins

71
Q

What is refrigeration?

A

The process if removing heat from and enclosed space or from a substance for the process of lowering the temperature

72
Q

What is freezing?

A

Is a phase transition where a liquid turns in a solid when its temperature is lowered blow its freezing point

73
Q

What is pickling?

A

The process of preserving or extending the shelf life of food by either anaerobic fermentation in brine or immersion in vinegar

74
Q

What is salting and syrup?

A

And old-fashioned curing or fermenting process for preserving fruit, vegetables and meat

75
Q

What is drying

A

Removes enough moisture from the food so bacteria yeast and molds cannot grow

76
Q

What is Pasteurisation

A

A process in which packaged and non packaged foods are treated with mild heat, usually to less than 100โ€™, to eliminate pathogens and extend shelf life

77
Q

What does mumps risk?

A

The outbreak of mumps affects higher education institutions because student and staff who become infected are at risk of spreading the illness to others

78
Q

Does oxygenated go in the right or left side?

A

Oxygenated blood goes through the right side.

79
Q

Does deoxygenated blood go through the left side?

A

Yes

80
Q

Name the 4 veins from the heart in order

A

Vena cava
Pulmonary artery
Aorta
Pulmonary vein

81
Q

What does the mouth do?

A

Eating and breaking down food

82
Q

What do the salivary glands do?

A

The salivary glands produce saliva and enzymes

83
Q

What does the liver do

A

Break down toxins

84
Q

What does the pancreas do

A

Produces insulin

85
Q

What does the anus do

A

Releases waste

86
Q

What does the gall bladder do

A

Produces bile

87
Q

What does the large intestine do

A

Absorbs water and salt

88
Q

What does the small intestine do

A

Helps digest food from stomach

89
Q

What does the rectum do

A

Stores waste

90
Q

What does the stomach do

A

Store food

91
Q

What do veins do and look like

A

Veins carry blood toward your heart. They have a thin cell wall and thick lumen

92
Q

What do arteries do and look like

A

Arteries carry blood away from the heart. They have thick cell walls and small lumens

Lilly (15 decks)

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