1.1CELL STRUCTURE
Domains
Microscopy Specialisation +
Differentiation
Light
microscope
Plants
Nucleus
Eukaryotes
Prokaryotes
Animals
Magnification
No
nucleus
Circular
DNA
Plasmids
Cell wall
Binary
fission
Nuclear
envelope
present
Plants
Cellulose
cell wall
Chloroplasts
Golgi
apparatus
Endoplasmic
reticulum
Rough
Smooth
Protein
synthesis
Lipid
synthesis
ATP synthesis
Ribosomes
No
membrane
bound
organelles
Permanent vacuole
Cell membrane
Number of times large the
image appears compared
to the size of the object Size of image /
size of object
Resolution
Smallest distance
between 2 points where
they are seen as
separate
Electron
microscope Higher...
Uses electron beam
Observes greater
detail Uses light to
create an image
Limited by...
Packaging and
modification
for transport
Contain chlorophyll
for photosynthesis Stores cell sap and
pigments
Controls movement
of substances in
and out of cells
Animals
Xylem cells
Phloem cells
Sperm cells
Nerve cells
Most
differentiate at
an early stage
Many cell
types can
differentiate
throughout a
plant’s life
Aseptic
techniques
Sterilise
equipment by
flaming
Incubate at 25°C to
prevent growth of
bacteria pathogenic to
humans
Petri dish lid
should be taped
and placed
upside-down
To test the
effectiveness
of antibiotics...
Measure area
of zone of
inhibition
Involved in protein
synthesis Upside-down to
prevent
condensation
disrupting culture
Mitochondria
KEY
‘Biology only’
written in clouds. AQA
https://bit.ly/pmt-cc
https://bit.ly/pmt-cc
https://bit.ly/pmt-edu
