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Biology Revision Exam Thing > Cells > Flashcards

Cells Flashcards

1
Q

What does the mitochondria do?

A

Supplies the cell with energy

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2
Q

What components are in both animal and plant cells?

A

Nucleus, Cell Membrane, Mitochondria, Cytoplasm

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3
Q

What structures are unique to plant cells?

A

Chloroplasts, Vacuole, Cell Wall

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4
Q

What is the function of the nucleus?

A

Controlling Cell Activity and storing DNA

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5
Q

What is the function of the cytoplasm?

A

Where reactions occur

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6
Q

What is the cell wall made from?

A

Cellulose

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7
Q

What does the cell wall in plant cells do?

A

Supports the cell and helps maintain it’s shape

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8
Q

What chemical is used for photosynthesis?

A

Chlorophyll

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9
Q

What is a specialized cell?

A

A cell with a specific function, e.g. root hair cell or nerve cell

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10
Q

How are root hair cells adapted to their function?

A

Large surface area, thin walls

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11
Q

Which cell type do bacteria have?

A

Prokaryotic, no nucleus

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12
Q

What cell type do animals and plants have?

A

Eukaryotic, has nucleus

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13
Q

What is diffusion?

A

Particles moving from high to low concentration - untill all particles are spread out (according to tim, probably correct)

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14
Q

What is osmosis?

A

Water moving from high to low concentration

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15
Q

What is Active Transport?

A

Particles moving from low to high concentration, requires energy

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16
Q

What do enzymes do?

A

Helps reactions; builds large molecules from smaller ones and breaks large molecules into smaller ones

17
Q

What food group is used to make enzymes?

A

Proteins

18
Q

Which type of microscope has the highest magnification?

A

Electron microscopes

19
Q

What is the formula for magnification?

A

size of image
magnification = —————————
size of object

or

size of image/size of object = magnification

20
Q

What does a light microscope use?

A

Light

21
Q

What factors affect diffusion?

A

Temperature, Concentration Gradient, Surface area

22
Q

What is the purpose of the Vacuole?

A

Keeps cell rigid

23
Q

What is visking tubing?

A

Selectively permeable membrane

24
Q

What is the resolving power?

A

The smallest size a microscope can show`

25
Q

What is the function of ribosomes?

A

Makes proteins

26
Q

What is the name of the part of the enzyme that fits with the substrate?

A

The active site

27
Q

What does ‘Lock & Key’ mean?

A

A stylized diagram of enzyme/substrate reactions

Biology Revision Exam Thing (6 decks)

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