cellular respiration (10) Flashcards
balanced equation for cellular respiration
C6H12O6 + 6O2 -> 6Co2 + 6H2O + ATP
aerobic respiration
is the process by which organisms use oxygen to turn fuel, such as fats and sugars, into chemical energy.
Glycolysis
Glucose broken down into 2 molecule of pyruvate
❖2 ATPs produced
❖2 NADH produced ❖No oxygen needed at this
stage
Forming of Acetyl co-enzyme
CO2 removed ❖1 NADH produced ❖2 C-compound moves into mitochondria (Acetyl CoA) ❖Used in the next stage (Krebs Cycle) ❖Controlled by amount of O2 available
krebs cycle
Acetyl CoA merges combines with oxaloacetic acid – citric acid (6-C)
❖Citric acid oxidised ❖3 NADH
❖1 FADH2 ❖2 CO2 ❖1ATP
hydrogen transfer system
Energy from hydrogens is removed to form ATP ❖Exhausted hydrogens bind with oxygen to for water ❖Each NADH has enough energy to form 3 ATPs ❖Each FADH2 can form 2 ATPs
where does the kreb cycle take place
mitochondria
NADH =
3 ATPS
FADH2 =
2ATPS
2 x Pyruvates =
2 x krebs cycle
glycolysis produces
2 x ATPS
2 x NADH = 6 ATPS
(overall 8 ATPS)
forming of acetyl co enzyme forms
2 x NADH = 6ATPS
Krebs cycle (happens twice)
6 x NADH = 18 ATP
2 x FADH2 = 4 ATP
2 x ATPS
(overall 24 ATP)
how much ATP is produces in one aerobic cycle
38 ATP
anaerobic respiration
the productions of energy in the absence of oxygen
