5839665
Description
Mind Map by eleanor ayeni, updated more than 1 year ago
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Created by eleanor ayeni
over 9 years ago
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B2_Cells, bacteria, microscopes
- def. the smallest structural unit in an organism
- cells
- prokaryotic
- smaller,simpler, no nucleus
- plasmids (both)
- naked DNA
- smaller,simpler, no nucleus
- eukaryotic
- more complex, contains a nucleus
- no naked DNA
- membrane is present
- more complex, contains a nucleus
- prokaryotic
- parts of cells
- nucleus:has genetic info. DNA, controls activity. P+A
- chloroplast: has chlorophyll absorbs light for photosynthesis P
- cell wall: shape, strength P+B
- cytoplasm: chemical reactions, enzymes control it P+A +B
- cell membrane: controls movement of substances P+A
- vacuole: stores water and ions to keep plant rigid P
- mitochondria: energy releases by respration
- plasmids: small double-stranded DNA molecules B
- nucleus:has genetic info. DNA, controls activity. P+A
- bacteria
- prokaryotic cells
- release toxins, damage
- multiply raid in moist,warm condition
- pathogens micro-organism
- every 5 mins, splits into 2
- prokaryotic cells
- microscope
- light
- cheap
- resolution:0.2mm
- specimen: living and dead
- size: small
- image: 2D natural colour is seen
- cheap
- electron
- expensive
- resolution: 0.1 mm
- specimen:dead
- very large
- image is 3D, false colour added
- expensive
- light
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