Cell Respiration Flashcards
what is energy and what is it needed for
energy is the capacity to do work it is needed for
growth - reproduction - general function like transport
what is ATP
adenosine triphosphate - energy used by living cells to do processes
explain the ATP cycle
when cells need energy the 3rd bond of ATP breaks of and the energy is used by cell (bond made of phosphate) this is a catabolic reaction
cell respiration releases energy in bonds by adding phosphate to ADP, this is anabolic
what is the formula for aerobic respiration ( word and element)
glucose + oxygen -> carbon dioxide + water + ATP
C6H12O6 + 6O2 -> 6CO2 + H2O + ATP
what is aerobic respiration
respiraion requiring oxygen breaking down glucose to CO2
where does aerobic respiration occur
cristae of mitochondria (folded inner membrane)
how do enzymes help aerobic resp
they are attached to internal membrane so folding produces large SA for aerobic resp to happen
how does aerobic resp work
in the CYTOPLASMm glucose is converted to two molecules of pyruvate and produces net +2 ATP through glycolisis
the two molecules are converted to AcetylcoA and undergo the Krebs Cycle (aka citric acid cycle) = +2ATP
they then undergo a electron transport chain reaction which produces +34 ATP
in aerobic respiration what can one glucose molecule produce
+38ATP which is 40% of energy (the rest is lost through heat)
what is anerobic respiration
respiration producing lactic acid from glucose not requiring oxygen
where does anerobic respiration occur
cytosol (cytoplasm)
how does anerobic resp work
glycolisis produces +2ATP and 2 molecules of pyruvic acid which if there is no O2 present turns to lactic acid
not as much energy is produced because glucose isn’t completely broken down
what is the formula for anerobic respiration ( word and element)
glucose -> lactic acid + ATP
C6H12O6 -> 2C2H6O3 + ATP
