Cellular Respiration Flashcards
the first step in cellular respiration that beings releasing energy stored in glucose
gycolosis
the carriers for energy and high energy electrons during GLYCOLYSIS are
ATP, NADH, FADH2
if Oxygen is not present, glycolysis is followed by
fermentation
name the 3 carbon molecules produced when glucose is broken in half during glycolysis
pyruvic acid (pyruvate)
since fermentation doesn’t require oxygen it is said to be
anaerobic
since cellular respiration requires oxygen it is said to be
aerobic
which high energy electron carrier us regenerated during fermentation that allows cells to continue to make ATP using glycolysis
NAD+
complete overall chemical equation for cellular respiration
C6H12)6 + 6O2 —> 6CO2 + 6H2Oh + Energy(ATP)
how are the photosynthesis equation and cellular respiration equation related
they are the opposite of one another
alcohol fermentation equation
NADH + pyruvate —> CO2 + Ethanol
lactic acid fermentation equation
NADH & pyruvate —> NAD+ & lactate
yeast uses this kind of fermentation to make bread dough rise
alcoholic
your muscle cells use this during rapid exercise when oxygen is low
lactic acid
why don’t you become intoxicated from eating bread if yeast uses alcoholic fermentation
the ethanol evaporates because of the high temperatures while baking in the oven
correct sequence of AEROBIC cellular respiration
Glycolysis, Krebs Cycle, ETC
where do carbon atoms in pyruvic acid end up following the Krebs Cycle
they become part of the CO2 molecule and end up in the atmosphere
how many total ATP molecules are produced by 1 molecule of glucose completing aerobic cellular respiration
36
what is produced during the Krebs Cycle
ATP, NADH, FADH2
What molecule is the final electron acceptor at the end of ETC
oxygen
why is water a product of aerobic respiration
h+ (hydrogen) atoms are added to oxygen and it joins together to make water
what moves across the membrane from the intermembrane space to the matrix causes ATP synthase to spin and make ATP
H+ ions
What stage of cellular respiration produces the most ATP? How much do each of them produce?
***ETC=32
Krebs Cycle=2
Glycolysis=2
what happens as electrons pass down the ETC
- energy from the moving electrons transport H+ ions into the intermembrane space
- energy from the H+ ions crossing back into the matrix causes ATP synthase to make ATP
- water is produced
the process of splitting glucose molecule into 2 pyruvic acid molecules
glycolysis
the molecule used by cells to store and transfer energy
ATP
a process with oxygen
aerobic
without oxygen
anaerobic
type of fermentation used by human muscles in low oxygen conditions and microorganisms to make yogurt, cheese, sauerkraut and kimchi
lactic acid
as electrons pass down the electron transport chain, H+ ions build up in the ________ space
inner membrane
what cycle breaks down pyruvic acid into CO2 and produces FADH, NADH, and ATP
Krebs cycle
the NADH and FADH2 produced during the Krebs cycle pass their electrons down ______ to produce ATP
the electron transport chain
the passage of H+ ions through ______ causes it to spin and produce ATP
ATP synthase
cell organelle that acts as the cell’s power plant to burn glucose and store energy as ATP
mitochondria
if O2 is not present, Glycolysis is followed by what
fermentation
the carbon atoms in pyruvic acid end up as ____ in the atmosphere following the Krebs cylce
CO2
the area inside the *cristae where the krebs cycle happens
matrix
