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life processes (MRS NERG (respiration (anaerobic (C6H12O6-> 2CO2+…
life processes
MRS NERG
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respiration
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anaerobic
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disadv: 1) less energy released, incomplete glucose combustion cs nt enough O2 2) waste products, lactic acid, muscle cramps, need to oxidise acid w oxygen, oxygen debt
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movement
osmosis
water molecules, high water conc, low water conc, partially permeable membrane
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active transport
particles, against conc gradient, energy frm respiration
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diffusion
net movement of particles,high conc to low conc
test fr diffusion, agar jelly decolourise
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enzymes
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nucleus ,chromosomes ,genes, control the production of proteins like enzymes ,catalyse metabollic reactions
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factors affecting
optimum temp, shape of active site chged, denatured
optimum pH , shape of active site chg cnt fit, denatured
substrate attaches to active site ,alternative route with lower activation energy, lock and key structure
extracellular, intracellular
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specialised cells
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smooth muscle (elongated, contract to move food in small intestine)
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multicellular structure
plant cell
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chloroplasts (chlorophyll absorbs light, photosynthesis happens in chloroplasts)
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cell wall (fully permeable, plants made up of cellulose, take in water, swell, wont burst, support)
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permanent vacuole (cell sap, take in water is cell sap tht swells, push on cell wall, gives support)
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