biology revision long quiz to help you revise 3.5 / 5 based on 3 ratings ? BiologyGCSEAll boards Created by: CourtneyCreated on: 04-01-11 08:39 What do we call the process that results in some cells being 'specialised'? differentiation 1 of 25 What is diffusion? the movement of random molecules from an area of high concentration to that of a lower concentration? 2 of 25 How is osmosis like diffusion? random requires no energy from 3 of 25 What is the function of the ribosomes? to make proteins 4 of 25 what substance, necessary for photosynthesis, does chloroplasts contain? chlorophyll 5 of 25 where does the enerygy for photosynthesis come from? the sun 6 of 25 what is the product of photosynthesis? glucose 7 of 25 what are the two substances needed to make the answer to question 9? water and carbon dioxide 8 of 25 why is the waste product of photosynthesis so important? it is needed for respiration in plants and animals 9 of 25 why does photosynthesis slow down on a cold day? the enzymes do not work effectively 10 of 25 the does the word biomass mean? the mass of living material 11 of 25 what is a detritus feeder? a organism that feeds on waste 12 of 25 why do enzymes stop working if it becomes to hot? they become denature 13 of 25 what type of molecules are enzymes? proteins 14 of 25 what is the function of bile? emulsify fat and neutralise stomach acid 15 of 25 what is the active site of an enzyme? the area where the reacting substances fit in 16 of 25 where is bile made and stored? mad in the liver, stored in the gall bladder 17 of 25 where is urea produced? liver 18 of 25 where is sweat produced? in the sweat glands 19 of 25 why are stme cells important? the can differentiate and grow into specialised cells 20 of 25 what is a gene? a short length of DNA that controls one characteristic 21 of 25 how many cells are produced from a parent cell in meiosis? four 22 of 25 Where does aerobic respiration take place? mitochondria 23 of 25 whaa does DNA stand for? deoxyribonucleic acid 24 of 25 what system does huntingtons disease affect? nervous 25 of 25
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