Cells And Magnification Flashcards

1
Q

Define eukaryotic cells

A

Have a membrane bound nucleus e.g. animal and plant cells

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2
Q

Define prokaryotic cells

A

they have no nucleus and the genetic information is found in the cytoplasm

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3
Q

What 5 things make up an animal cell

A
  1. Nucleus
  2. Cell membrane
  3. Cytoplasm
  4. Mitochondria
  5. Ribosomes
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4
Q

What happens in the nucleus

A

Controls the activities of the cell and contains the genetic information

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5
Q

Whats the cell membrane used for

A

Controls what enters and leaves the cell.

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6
Q

What is cytoplasm used for

A

Where most chemical reactions occour

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7
Q

What is mitochondria used for

A

Site of respiration, which release energy for the cell

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8
Q

What are ribosomes used for

A

Where proteins are made ( protein synthesis )

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9
Q

What 3 added things make up a plant cell

A
  1. Cell wall
  2. Vacuole
  3. Chloroplast
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10
Q

What is a cell wall used for

A

Strengthens and supports the cell to keep its shame

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11
Q

Whats the vacuole used for

A

Storage space filled with cell-sap , helps to keep the cell rigid

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12
Q

Whats chloroplast used for

A

Where photosynthesis takes place to make food for the plant

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13
Q

What 4 things make up a bacterial cell

A
  1. Genetic material
  2. Plasmids
  3. Flagella
  4. Slime capsule
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14
Q

What is genetic material and whats it made for

A

Its a single loop of chromosomal DNA free in the cytoplasm. It carries most of the bacterial genes

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15
Q

What are plasmids and what do they do

A

Some bacteria have extra circles of DNA, these contain additional genes not found in the chromosomes

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16
Q

What is flagella used for

A

It rotates to move the bacteria cell

17
Q

Whats a slime capsule used for

A

Protects the cell and helps it cause disease

18
Q

Whats the order for units from biggest to smallest

A

Millimetres (mm) micrometres (um) nanometres (nm) picometres (pm)

19
Q

Whats the equation for magnification

A

Image size / size of real object

20
Q

On an image what do you measure the scale bar in the image in

A

Mm

21
Q

What do u convert the scale bar image in after measuring

A

Micro metres

22
Q

Image size equation

A

Magnification x size of real object

23
Q

Size of real object equation

A

Image size / magnification