Cell Structure Flashcards

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1
Q

What is a cell

A

cells are the basic unit of life
every living organism is made up of one or more cell

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2
Q

what are the four types of cells

A
  • animal
  • plant
  • bacterial
  • fungal
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3
Q

What is the cell membrane

A

surrounds the cell and holds the cell together
controls entry and exit of substances into and out of cell

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4
Q

what types of cell have a cell membrane

A

all the cells

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5
Q

what is the cell wall

A

made out of cellulose
maintains cell structure and supports the cell

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6
Q

What type of cell has a cell wall

A
  • plant cell
  • Bacterial cell
  • fungal cell
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7
Q

what is a cytolplasm

A

it is the site of chemical reactions within a cell

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8
Q

what types of cells have cytoplasm

A

all cell types

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9
Q

what is the nucleus

A

contains genetic information and controls cell activities

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10
Q

what cells have a nucleus

A

animal cell
plant cell
fungal cell

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11
Q

what is the chloroplast

A

a green pigment called chlorophyll they are the site of photosynthesis

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12
Q

i hat kind of cells have a chloroplast

A

plant cell

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13
Q

what is the vacuole

A

a fluid filled sac containing cell sap

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14
Q

what kind of cells have a vacuole

A
  • plant cell
  • fungal cell
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15
Q

what is the mitochondria

A

site of aerobic stages of respiration

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16
Q

what kind of cells have a mitochondria

A

animal cell
plant cell
fungal cell

17
Q

What is a ribosome

A

They are the site of protein synthesis

18
Q

what kind of cells have a ribsome

A

all cell types

19
Q

what are plasmids

A

plasmids are circular rings of dna

20
Q

What kind of cell has a plasmid

A

Bacterial cell

21
Q

what is the difference between a plant cell wall and a bacterial cell wall

A

plant cell wall is made of cellulose
bacterial cell wall is made of a diff material

22
Q

what are the three magnifications levels on a microscope

A

x4
x10
x40

23
Q

what is the sun to find out total magnification

A

total magnification = eyepiece x objective

24
Q

how to prepare a cheek slide

A
  • swab inside of your cheek and smear onto the centre of the slide
  • put one drop of methyl blue on the slide
  • gentle put a clover lip over the cells
  • view the slide under the microscope and draw what you can see
25
Q

what are the two types of microscopes

A

light microscopes
electron microscope

26
Q

Why do you add stains when viewing certain cells

A

Stains must be added to view the structures of a cell more clearly

27
Q

What is micrometers in millimetres

A

1mm = 1000um

28
Q

how to calculate cell size

A

convert diameter to micrometers
count the number of cells you can see going from one side to another
- length is across the field of view
- breadth is down the feild of view
divide the diameter of the field of view by the number of cells