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respiration & metabolism& aerobic and anaerobic respiration&…
respiration & metabolism& aerobic and anaerobic respiration& exersise
metabolism
in some of these reactions large molecules are made from smaller ones
3)glucose is combined with nitrate ions to make amino acid which are made into protein
2)lipid molecules are each made from one molecule of glycerol and three fatty acid
1) lots of small glucose molecules are joined together in reactions to form starch glucose and cellulose
in other reactions large molecules are broken down into smaller one
1) glucose is broken down in respiration transfers energy to power all the reactions in the body that make molecules
2) excess protein is broken down in a reaction to produce urea urea is then excreted by urine
many of these reactions are linked together to form bigger reactions like reactant ->product->product->product
the sun of all the reactions all happens in a cell or the body is called metabolism.
in a cell there are lots of chemicals reactions happening all the time which control the enxymes
transfers energy
2)in animals its used to allow the muscles to contract
3)in mammals and birds the energy is used to keep their body temperature steady in colder surroundings
1)to build up large molecules from smaller ones
resiration
3) it happens in plants all living things respire its how they transfer energy from their food to their cells
2)respiration is the process of transferring energy from the breaking down of glucose and it goes on in every cell in your body continuously
RESPIRATION IS THE PROCESS OF TRANSFERRING ENERGY FROM GLUCOSE WHICH GOES INTO EVERY CELL
1) respiration is not breathing in and breathing out
4) respiration is exothermic it transfers energy to the enviroment
respiration involves many reactions aspiration transfers energy that the cell need to do just about everything energy is used for all living processes
aerobic respiration (needs oxygen)
3) most of the reaction is aerobic happen inside mitochondria
4) here are the world and symbol equations for aerobic respiration
2) aerobic reparation goes on all the time in plants and animals
glucose+oxygen---->carbon dioxide+water
1) aerobic respiration is respiration using oxygen its the most efficient way to transfer energy from glucose
anaerobic respiration
2) word equation for anaerobic respiration in muscles cells
glucose----->lactic acid
1) anaerobic just means with out oxygen its an incomplete breakdown of glucose making lactic acid
3) anerobic respiration does not transfer as much energy as aerobic respiration this is because glucose isn't fully oxidised
when you exercise your body cant supply enough oxygen to your muscles they start to anaerobically respire as well as aerobically
4)so the respiration is only useful in emergencies during exercise when it allows you to keep on using your muscles for a while longer
anaerobic respiration in plants and yeast is slightly different
5) in bread making its the carbon dioxide from fermentation that makes bread rise
6)in beer and wine making its the fermentation process that produces alchol
4) in the food and rink industry fermentation by yeast is of great value because its used to make bread and alcoholic drinks
3)anaerobic respiration in yeast cells is called fermentation
glucose---->ethanol=carbon dioxide
2) word equation for anaerobic respiration in plants and yeast cells
1) plants and yeast cells can respire with out oxygen too but they produce ethanol and carbon dioxide instead of lactic acid
when you exercise you respire more
5)no the best was to transfer energy from glucose because lactic acid builds up in the muscles which gets painful
4) when you do really vigorous exercise your body cant supply oxygen to your muscles quickly enough so they start respiring anaerobically
3) you breathing rate and breath volume increase to get more oxygen into the blood and your heart rate increases to get this oxygenated blood around the body faster this removes the carbon dioxide more quickly at the same time.
2)the increase in respiration in your cells means you need to get more oxygen into them
1) muscles need energy from respiration to contract when you exercise some of your muscles contract more frequently than normal so you need more energy energy comes from increased respiration
6)log periods of exercise also cause muscle fatigue the muscles get tired and then stop contracting efficiently.
anaerobic respiration leads to oxygen debt
3)you have to repay the oxygen that you didn't get to your muscles in time because your lungs heart and blood couldn't keep up with the demand earlier
4)keep breathing hard for a while after you stop to get more oxygen into your blood which is transported to the muscle cells
5)the pulse and breathing rate stays high whilst there are high levels of lactic acid and carbon dioxide
6) your body also has another way of coping with the high level of lactic acid the blood that enters your muscles transports the lactic acid
2) an oxygen deb is the amount of extra oxygen your body needs to react with the build-up of lactic acid and remove it from the cells
1) after resorting to anaerobic respiration when you stop exercising you'll have an oxygen debt