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cell structure > cell structure > Flashcards

cell structure Flashcards

1
Q

name the microscope we use in the lab

A

compond microscope

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1
Q

what are the two magnifiying lens called

A

eye peice lens and objective lens

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2
Q

name the parts of the microscope

A

eyepiece,
objective lens,
stage,
iris diaphram,
condenser,
light source,
fine focus knob,
coarse focus knob

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3
Q

how do you find the magnification

A

magnifying power of eyepeice multiplied by the magnifying power of the objective lens

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4
Q

what is an electron microscope

A

a microscope that uses electrons instead of light because electrons have a lower wavelength than light

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5
Q

advantages of an electron microscope

A

the resolution is much better
the magnification is greater

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6
Q

what are cells

A

the basic units of structure and function in an organism

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7
Q

what are internal structures in a cell called

A

organelles

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8
Q

draw a basic animal cell

A

should include
nucleus
cytoplasm
cell membrane
protoplasm

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9
Q

another name for the cell membrane

A

plasma membrane

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10
Q

what is the protoplasm

A

all the living parts of a cell

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11
Q

what is the cell membrane

A

surrounds the cell allows substances in and out

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12
Q

what is the nucleus

A

holds dna and is the control centre

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13
Q

what does cytopalsm do

A

where reactions happen

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14
Q

draw a plant cell under the light microscope

A

must include
nucleus
cell membrane
cell wall
vacuole
cytoplasme
chloroplast

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15
Q

what is the cell wall made of

A

cellulose

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16
Q

what does the cell wall do

A

gives the cell strength

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17
Q

what does the vacuole do and what is it made of

A

contain a fluid called cell sap they are used to give the cell strength, shape and also store materials

18
Q

what does chloroplasts do

A

where photosynthesis takes place

19
Q

what is ultra structure

A

the fine detail of a cell seen with an electron microscope

20
Q

draw the ultrastructure of an animal cell

A

must include
ribosomes
cytoplasm
plasma membrane
mitchondrion
chromatin
nuclear membrane
nuclear pores

21
Q

draw the ultrastructure of a plant cell

A

must include
cell wall
mitochondrion
plasma membrane
vacuole
ribosomes
chloroplast
cytoplasm
nuclear membrane
chromatin
nuclear pore

22
Q

draw a phospholipid bilayer

A

must include
phosphate head
lipid tail
protein
pore

23
Q

what are cell membranes composed of

A

phospholipids and proteins

24
Q

what are phospholipids made off

A

phospate head
lipid tail

25
Q

how are phospholipids arranged

A

into double layers (bilayers)

26
Q

what are the functions of a cell membrane (3)

A
  1. retains the cells contents
  2. controls what enters and leaves the cell (selectively permeable)
  3. they give support to the cell
27
Q

draw the nucleus

A

must include
nuclear pore
nucleolus
chromatin
double nuclear membrane

28
Q

what are the functions of the nucleus (2)

A

the control centre of the cell
contains the cells genetic information

29
Q

what does the double membrane do

A

controls the movement of substances

30
Q

what does the nucleolus contain

A

RNA, DNA and proteins

31
Q

where are ribosomes made

A

nucleolus but function when released into cytoplasm

32
Q

what is chromatin composed of

A

dna and protein

33
Q

draw a mitochondia

A

must include
outer membrane
inner membrane
foldings
if it is active or inactive

34
Q

what does a mitochondria do

A

supply energy to the cell in a procss known as respiration

35
Q

what two organelles have dna besides the nucleus

A

mitocondria
chloroplast

36
Q

draw a chloroplast

A

must include
grana
thylakoid
stroma
DNA
inner membrane
outer membrane
starch grain

37
Q

what is the purpose of the chloroplast

A

where photosynthesis takes place

38
Q

what does the thylakoid contain

A

chlorophyll

39
Q

what are ribosomes made of

A

protein and RNA

40
Q

what are ribosomes functions

A

to make protein

41
Q

what is prokaryotic

A

organisms whose cells dont have a nucleus or membrane enclosed organelles

42
Q

what is eukaryotes

A

organisms whose cells do have a nucleus and membrane enclosed organism

cell structure (3 decks)

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