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Biology
CELL ACTIVITY
GCSE…read more

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Biology
NUCLEUS:
controls the
ANIMAL CELL activities of the
cell
RIBOSOMES:
where protein
synthesis takes
place
MITOCONDRIA:
where most of
the energy is
released in
respiration
CYTOPLASM:
where most
chemical
reaction in the
CELL MEMBRANE: controls what enters and leaves the cell cell take place…read more

Slide 4

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Biology
NUCLEUS: controls RIBOSOMES: where
the activities of the protein synthesis
PLANT CELL cell takes place
CHLOROPLASTS: carry out
photosynthesis. Contain
chlorophyll to trap light
CELL energy
WALL:
cover the
thin cell MITOCONDRIA: where most
membrane of the energy is released in
It is made respiration
up of tough
cellulose to CYTOPLASM: where most
make the chemical reaction in the cell
cell take place; often contains
stronger starch grains
CELL MEMBRANE: controls
what enters and leaves the
cell
VACUOLE: large permanent storage for cell sap and water…read more

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Biology
BACTERIA
o Prokaryotic; cell membrane but
no nucleus
o DNA is lose in the cell
o Cell membrane
o No nucleus ­ single
chromosome (nucleoid)
o May have plasmids (short
sections of DNA)
o Cell wall is peptidoglycan; not
cellulose
o Proteins attach to
carbohydrates…read more

Slide 6

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Biology
AMOEBA
o Unicellular
o A seven life cycles happen in
one cell
o Lives in ponds and ditches
o Moves by changing shape:
pushes pseudopodium in the
direction it wants to go
o Feed on things like bacteria
which are smaller
o Pseudopodium flows around food
o Enzymes are added to break it
down
o Oxygen diffuses in and carbon
dioxide diffuses out
o Reproduces by splitting in two…read more

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