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B1 - REVIEW (Cell Structure (relative size of... (0.0002mm long…
B1 - REVIEW
Cell Structure
Main organelles of eukaryotic cells
animal
cell membrane
controls passage of substances in/out of cell
ribosomes
proteins made
cyptoplasm
chemical reactions
mitochondria
aerobic resp.
Nucleus
controls activities
contains genetic info
Plant
cell wall
cellulose, strengthens cell
cell membrane
controls passage of substances
permanent vacuole
cell sap, supports plant
chloroplasts
absorb light to make glucose
cyptoplasm
chemical reactions
nucleus
control activities, contains genetic info
ribosomes
proteins made
relative size of...
0.0002mm long
prokaryotic cell
0.1 mm in diameter
plant cell
0.02mm in diameter
animal cell
describe the difference between how genetic material is found in prokaryotic and eukaryotic cells
prokaryotic
no nucleus
plasmid DNA
circular
small
replicate independantly
chromosomal DNA
DNA of bacteria
not in nucleus
usually found as one circular chromosome
Eukaryotic
in a nucleus
both plant and animal cells
Cell Differenciation
process of cells becoming specialised
unspecialised to specialised
binary fission
primary method
Cell Division