Ch5 Hamework work Complete the following statements to demonstrate your understa
ID: 151885 • Letter: C
Question
Ch5 Hamework work Complete the following statements to demonstrate your understanding of the oxidation and reduction fredonj reactions that take place during photosynthesis and celular respiration Photosynthesis Cellular Respiration energy + 6 CO2 +6 H:O CHiOs 6O CaHizOs+ 60 6 CO2+6 H:0+ energy During water from aron doxide as gucose Rrms Thas, during whle walter is electrons and In other words carbon daide gains During glicose isas ongen is reduced becoing water celutar respiration haah .twie rersore thle one mokeelses eletters , Pus. each of these metsbole pathwa redzx reactiars couped reduction and oidation seactons cses photosynnesisExplanation / Answer
The process of photosynthesis is considered as redox reaction activated by the light absorbed by chlorophyll or certain other substances e.g phycocyanin or fucoxanthol, resulting in the evolution of O2, H2O and in the formation of reduced carbon compound (Carbohydrate) from Carbondioxide. When the chloroplasts are isolated from the cell they are able to catalyse the photochemical reduction of certain hydrogen acceptors with the evolution of oxygen from water but they are unable to reduce Carbondioxide. The metabolic system of the cell may be analysed in terms of number of separate processes but probably there may have many steps in common. The reaction s which must be unique to the photosynthesis are those reactions involving at most two light quanta per hydrogen atom transferred. Which results in the formation of hydrogen donner capable of reducing CO2.
Six molecules of Carbondioxide reacts with six molecules of water in presence of sunlight and pigment to produce 1 molecule of glucose and 6 molecules of oxygen. Sun light is necessary as photons provide energy for the biochemical reaction to take place.
Photosynthesis is basically mirror image of cellular respiration in which water, Carbondioxide and energy from sun are used to build sugars and releasing oxygen in this process.
Cellular respiration:
Cellular respiration is the complex process of breakdown of complex substances intoits simpler one (sugars)that accompanies with the release of energy in the form of ATP. Usually this process uses oxygen and is called anaerobic respiration, it has for stages known as glycolysis, link reaction, Krebs cycle and the electron transport chain.
Glycolysis is the step by step process and each step is followed by specific enzyme this process (glycolysis) occurs in cytoplasm and pyruate is the end product of this process which later enters into mitochondrial metrics for the completion of process.
C6H12O6+6O2 gives 6CO2+6H2O+ ATP.