cellular respiration Flashcards
first stage of cellular respiration is _____
gylcolysis
second stage of cellular respiration is ______
krebs cycle
3rd stage of cellular respiration is ________
electron transport chain
gycolysis is an _________ process
aerobic
most of the energy releasing pathways in cells are__________
aerobic. or require oxygen
glycolysis is an ________ process
anaerobic
if glycolysis takes up all the oxygen, _________ occurs
ferementation
low PH in blood is
more acidic
high PH in blood is
more basic
when blood gets too acidic ________ occurs
acidosis
symptoms of acidosis are
- fatigue
- headache
- sleepiness
- loss of appetite
aerobic reaction that builds up CO2
krebs cycle
cellular respiration turns
glucose to energy
cellular respiration formula
C6+h12O6+6O2———6CO2+6H2O+energy
energy produced in cellular respiration is used for
- heat
- 38 ATPs
what does glycolysis do
changes glucose from a 6carbon molecule to 2 3-carbon molecules
each 3 carbon molecule produced by glycolysis is called a
pyruvate
product #1 of glycolysis is
4 ATPs. 2 net ATPs
product #2 of glycolysis is
NADH
what is used to drive the electron transport chain
NADH
each NADH produces
3 ATP
product #3 of glycolysis is
FADH2
when does ferementation occur
when there is not enough oxygen for the krebs cycle to occur
alcoholic fermentation occurs in
yeast
lactic acid fermentation occurs in
humans & mammals
krebs cycle is an ________ process
aerobic
krebs cycle makes
2 net ATPs
what drives the ETC
10 NADH molecules produced during glycolysis and the krebs cycle
the ETC is a _______ process
aerobic
the ETC produces net ___ ATPs
34
glycolysis end products
pyruvic acid, 2 net ATPs, FADH2
a kilocalorie is equal to
1,000 Calories
4 grams of sugar is
1tsp
where does glycolysis take place
cytoplasm
where does the ETC take place
the innermost compartment of the mitochondria called the matrix
glucose is a ___ carbon molecule
6
end products of the krebs cycle
CO2- ATP- NADH- FADH2
one of the 3 carbons in pyruvic acid is used to make___
CO2
the other 2 carbon in pyruvic acid rearrange themselves to form
acetic acid
acidic acid joined to s compound called coenzymeA forms a molecule called
acetyl-coA
the high energy electrons produced by glycolysis and the krebs cycle are used to convert
ADP -to- ATP
an ______ at the end of the ETC the the high energy electrons w/ hydrogen and oxygen to form H20
enzyme
_____ serves as the last electron receptor in the ETC
oxygen
alcoholic fermentation formula
pyruvic acid + nadh= alcohol+ CO2+nad
lactic acid fermentation formula
pyruvic acid + NADH= lactic acid + NAD
