cellular respiration Flashcards
what are the steps of cellular respiration?
glycolysis, Krebs cycle, alcoholic fermentation, lactic acid fermentation, electron transport
is oxygen is present, Wich path will the pyruvate molecule go down
aerobic pathway (Krebs cycle)
if oxygen is not present Wich pathway will the pyruvate molecule go down
anaerobic pathway
what is the major goal of cellular repsiration
to make ATP molecules
what does gycolysis do
breaks down glucose into 2 ATP and 2 pyruvate molecules(pyruvic acid)
what is the first step of cellular respiration
glycolysis
what are the products and reactants of cellular respiration
reactants- glucose, o2
products- co2, H20
as you breath what molecules do u release
co2 and h20
what happens if ur body suddelny does a sprint and doesn’t have time to get oxygen to ur muscles
lactic acid fermentation
what is catabolism
breaking down molecules chemical bond energy to make atp
what type of reaction is cellular respiration
exogonic
what is it called when there is a gain of hydrogen atoms
reduction
what is it called when there’s a loss of hydrogen atoms
oxidation
what is glucose metabolized into
co2, h20
what molecule is transfered to o2 to make h20
hydrogen
at what speed is the energy in glucose REALEASED
slowly and subtley
what percent of our food intake goes to heat energy
90%
what role does ATP synthase have in cellular respiration
is fueled by hydrogen to make ATP
how is ATP formed
when a phosphate is broken up the bond breaking releases atp
what are the steps of aerobic pathway in order
glycolysis, Krebs cycle, electron transport
what happens to the molecules in the krebs cycle when they are released
they go through the electron transport chain and get recharged to be reused
where does gycolysis occur
cytoplasm
where does the Krebs cycle occur
in the matrix inside the michtochondria
where does lactic acid fermentation and alcoholic fermentation occur
cytoplasm
what do products of the Krebs cycle drop off in the electron transport chain
hydrogen
if the pyruvate molecule goes down the aerobic pathway what is it converted into for the krebs cycle
2 acetyl COA
what are the products and reactants of lactic acid fermentation
reactants- 2 pyruvate , NADH
products- NAD+, 2 lactate
what are the products and reactants of alcoholic fermentation
reactants-NADH, 2 pyruvate
products- co2, NAD+, 2 ethanol
what does g3p do in cellular respiration
a step after glycolysis it helps split the glucose into pyruvate
what are the three steps of gycolysis in order
investment- where 2 ATP come in
cleavage- where glucose gets split with G3P into pryruvate
energy harvest- where 2NAD+ get converted into 2 NADH and the 2ADP gets converted into 2 ATP
can gylcolysis happen to any molecule?
yes
what are the products and reactants of the Krebs cycle
reactants- nad+, FAD , ADP, acetyl COA,
products- Co2 {waste product} NADH, fadh2, atp, coA
what is substrate phosphyorlation
when a phosphate attches to a molecule
what is chemiosmotic phosphorylation
when a phosphate attached to ADP molecules making atp through it flowing through the membrane by chemiosmsis
