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Biology GCSE Revision (TZ) > Key Words (I did a bit but still needs more) > Flashcards

Key Words (I did a bit but still needs more) Flashcards

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1
Q

Magnification

A

Magnification is the multiplier of the actual object to get the image. Eg “magnification of x10 with an object of 10cm makes an image of 100cm”

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2
Q

IAM triangle

A

Image = actual( magnification)
Actual = image/magnification
Magnification = image/actual
Where actual is the actual size of the object

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3
Q

Resolution

A

The smallest measurable distance of two points. (Eg. two points next to each other on a computer screen if close enough will appear as one pixel and not as separate entities)

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4
Q

Nucleus

A

The nucleus is found in eukaryotic cells. It contains the majority of the cells genetic material. The material is organised as DNA molecules along with a variety of proteins to form chromosomes.

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5
Q

What is the Cytoplasm?

A

It is the liquid in the cell where the contents of a cell are suspended and where most of the chemical reactions needed for life take place

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6
Q

Cell membrane

A

The ‘wall’ surrounding the cell which maintains what comes in and out of the cell

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7
Q

Mitochondria

A

The mitochondria is an organelle found in most types of cells. It is the site of respiration and is responsible for producing energy.

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8
Q

Eukaryotic cells

A
  • more complex organisms (multicellular)
  • Have a true nucleus in the cytoplasm which encloses genetic material
  • plants, animals and fungi include eukaryotic cells
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9
Q

Plasmid

A

Add ensures

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10
Q

Order of magnitude

A

To find the ‘order of magnitude’ divide the larger number by the smaller number and if the product is bigger than less than 10 then the order of magnitude is considered the same.
10 >= x is 10^1
100>= x is 10^2
(It’s a bit of a joke tbh)

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11
Q

Muscle cell adaptations

A

This isn’t even a key word. Not even a key phrase tbh.

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12
Q

Sperm cell adaptations

A

Good Evening

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13
Q

Prokaryotic cells

A

Bacteria

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14
Q

Nerve cell adaptations

A

It says key words not key phrases dumbass

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15
Q

Root hair cell adaptation

A

I might just change this to key phrases.

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16
Q

Xylem Cells

A

Brings water and mineral ions around the plant

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17
Q

Diffusion

A

The net random movement of particles from an area of high concentration to an area of low concentration (with the concentration gradient)

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18
Q

Phloem Cells

A

Brings food around the plant (that is what the spec wants you to know, nothing else(i think))

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19
Q

Ribosome

A

Something to do with cells

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20
Q

Chloroplast

A

Another thingy

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21
Q

Cell Wall

A

Ezy

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22
Q

Vacuole

A

Plant cells have it while animal cells don’t. (Some do, they just very small, but spec says GCSE people don’t need to know that)

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23
Q

Rate of diffusion

A

Key PHRASE

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24
Q

Osmosis

A

Osmosis is the net random movement of water from an area of high water potential to an area of low water potential over a partly permeable membrane.

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25
Q

Dilute

A

Reminds me of wine

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26
Q

Concentrated

A

Not sure how to explain it. But, well, basically it is when like the stuff gets thingy cos of the other thing.

27
Q

Crenated

A

When there is less water inside so it goes all shrivelled (animal cell)

28
Q

Lysis

A

When it has too much water in it that it explodes (animal cell)

29
Q

Plasmolysis

A

Still in the hello topic

30
Q

Turgid

A

Has lots of water in it so it is big (plant cells)

31
Q

Turgor Pressure

A

Cheap remake of Hulk Smash

32
Q

SA to V ratio (Surface area to volume ratio)

A

Ok

33
Q

Interphase

A

I see

34
Q

Cytokinesis

A

When did it all start

35
Q

Gene

A

Don’t just blame genes

36
Q

Chromosome

A

Oh, ok then.

37
Q

Differentiated cell

A

Haven’t even got to this topic yet.

38
Q

Undifferentiated cell

A

Unique doesn’t mean useful.

39
Q

Embryonic stem cell

A

Yep.

40
Q

Mitosis

A

Mitosis.io

41
Q

Active Transport

A

Requires energy.

42
Q

Adult stem cell

A

Bone marrow.

43
Q

Therapeutic cloning

A

Steve where are you?

44
Q

Cloning

A

Here Steve is.

45
Q

Organ

A

What is this.

46
Q

Tissue

A

Yep

47
Q

Organ system

A

Big thing

48
Q

Enzymes

A

Evil little things that steal your food >:0

49
Q

Liver

A

Makes stuff

50
Q

Bile

A

Made near liver or in it

51
Q

Zygote

A

Last word in dictionary.

52
Q

Carbohydrase

A

An enzyme.

53
Q

Lipase

A

Lipase is an enzyme that breaks down dietary fats into smaller molecules called fatty acids and glycerol. A small amount of lipase, called gastric lipase, is made by cells in your stomach. This enzyme specifically digests butter fat in your food. Breaks down fats (lipids).

54
Q

Protease

A

A protease (also called a peptidase or proteinase) is any enzyme that performs proteolysis. Proteases have evolved multiple times, and different classes of protease can perform the same reaction by completely different catalytic mechanisms. They break down protein.

55
Q

Active Site

A

Part of enzyme where the chemical reaction occurs. It denatures if the ph or temperature is too high or low.

56
Q

Denatured Enzyme

A

An enzyme that can no longer help in digesting as its active site is deformed and doesn’t match the shape of the molecule it is digesting.

57
Q

Blood Plasma

A

Yellow liquid with suspended blood cells. It makes up 55% of the blood. Transport dissolved products. E.g. Co2, urea, insulin.
Helps maintain constant body temperature.

58
Q

Red Blood Cells

A

Erythrocytes, are the most common type of blood cell.Don’t have a nucleus.Biconcave shape. Small surface area to volume ratio. Contain the protein haemoglobin. They give blood its red colour. They carry oxygen to muscles. Make up 45% of the blood.

59
Q

Platelets

A

Platelets are blood cells critical to blood clotting, which is the process that stops bleeding.

60
Q

Veins

A

Carrying blood towards the heart where the pressure is not as high.

61
Q

White Blood Cells

A

leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

62
Q

Arteries

A

Carrying blood away from heart where the blood is pushed at ha higher pressure.

63
Q

Capillaries

A

Very small blood tubes that are only 1 cell thick and carry the oxygenated blood to muscles and carry waste away from muscles.

Biology GCSE Revision (TZ) (50 decks)

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