ࡱ> GIF5@ bjbj22 .:XXZZZZntacccccc$R,,,a,a,&,R Z|E0,,, V" VTWENTY QUESTIONS Define respiration. _____________________________________________ Write out the balanced equation for respiration. _____________________________________________________________ What are the products of aerobic respiration used for? _____________________________________________________________ _____________________________________________________________ Distinguish between aerobic and anaerobic respiration. _____________________________________________________________ _____________________________________________________________ Which type of respiration happens in human muscle cells? Explain. _____________________________________________________________ _____________________________________________________________ Complete this table FACT Aerobic/anaerobic respProduces more energy per glucoseHappens in cytosol onlyHappens in cytosol and mitochondriaOnly occurs in time of emergencyMakes more ATP Produces lactic acidProduces CO2Produces ATPProduces ethanolUsed in baking and brewing What is fermentation? _____________________________________________________________ _____________________________________________________________ Write a paragraph to explain how ATP is used to trap and transfer energy within a cell. _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ HONS Complete the following :- (a) Distinguish between aerobic and anaerobic respiration. Give the balanced equation for aerobic respiration. (b) Answer the following questions in relation to the first stage of respiration. (i) Where in the cell does this stage occur? (ii) During this stage a small amount of energy is released. Explain the role of ADP in relation to this released energy. (iii) What is the final product of this stage under aerobic conditions? (iv) If conditions in the cell remain aerobic the product you have named in (iii) is used for the second stage of respiration. Where does this second stage take place? (v) If conditions in a human cell (e.g. muscle) become anaerobic the product named in (iii) is converted to another substance. Name this other substance. (vi) When the substance named in (v) builds up in the blood, a person is said to be in oxygen debt. This debt must eventually be paid. Suggest how the debt is paid.(24) c) If yeast cells are kept in anaerobic conditions alcohol (ethanol) and another substance are produced. (i) Describe, with the aid of a diagram, how you would keep yeast under anaerobic conditions in the laboratory. (ii) Name a carbohydrate that you would supply to the yeast as an energy source. (iii) Give an account of a chemical test to demonstrate that alcohol (ethanol) has been produced. Include the initial colour and final colour of the test. (iv) What is the other substance produced under anaerobic conditions? (v) Alcohol (ethanol) production is an example of fermentation. How would you know when fermentation has ceased? (vi) Why does fermentation eventually cease? (27) PASS (i) Identify X and Y in the following equation which is a summary of aerobic respiration. C6H12O6 + 6X 6Y + 6H20 (ii) What is anaerobic respiration? (9) Answer the following questions in relation to aerobic respiration as a two stage process. (i) Where in the cell does the first stage take place? (ii) Does the first stage require oxygen? (iii) Comment on the amount of energy released in the first stage. (iv) Where in the cell does the second stage take place? (v) Does the second stage require oxygen? (vi) Comment on the amount of energy released in the second stage. (vii) State two ways in which the energy that is released is used in the human body.(24) (i) Describe how you used yeast to produce alcohol (ethanol). Include a labelled diagram of the apparatus that you used. 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" w { - . ! % & 2 ? G x y q} fh33333333333333333333Tx-oB\34 %l w Angela GammellF|Π808^8`0o(. ^`hH. pLp^p`LhH. @ @ ^@ `hH. ^`hH. L^`LhH. ^`hH. ^`hH. PLP^P`LhH.F|b\E        ar}m@ABZ[\@Ϝ`@UnknownGz Times New Roman5Symbol3& z ArialCTimesNewRomanMTimesNewRoman,BoldKTimesNewRomanPSMTUTimesNewRomanPS-BoldMT"qhNr&hr&Yh Yh !243QH)?aTWENTY QUESTIONSAngela GammellAngela Gammell Oh+'0 $ @ L Xdlt|TWENTY QUESTIONSdWENAngela GammellSngengeNormalGAngela GammellS1geMicrosoft Word 10.0@ա@q@FuYh ՜.+,0 hp|  YA TWENTY QUESTIONS Title  !"#$%'()*+,-./012345789:;<=?@ABCDEHRoot Entry F-JData 1Table&WordDocument.:SummaryInformation(6DocumentSummaryInformation8>CompObjj  FMicrosoft Word Document MSWordDocWord.Document.89q