Decay Revsion of GCSE biology decay 0.0 / 5 ? BiologyGCSEOCR Created by: harryCreated on: 29-03-13 14:30 What causes thing to decay Microorganisms 1 of 8 3 things that affect rate of decomposition Temperature,Amount of water and amount of oxygen 2 of 8 Temperature Warm means faster because it speeds up respiration in microorganisms 3 of 8 Amount of water Things decay faster when they're moist because microorganisms need water 4 of 8 Amount of oxygen More=faster because microorganisms respire aerobically 5 of 8 Two types of decomposers Detritivores and Saprophytes 6 of 8 Detritivores Break down the dead and decaying material into smaller pieces to increase the surface area 7 of 8 Saprophytes Secrete digestive enzymes which break down the material 8 of 8
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