what are the stages of cellular respiration in order?
glycolysis, Krebs cycle, and electron transport chain
what is released during cellular respiration besides water and carbon dioxide?
energy
how many net ATP are made during glycolysis?
2
how many ATP are made from glucose in the presence of oxygen?
36 ATP
what is the equation for cellular respiration?
C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy
cellular respiration generates energy by breaking down...
food molecules
what are the reactants in the equation for cellular respiration?
glucose and oxygen
what are the products of cellular respiration in the equation?
carbon dioxide, water, energy
where does glycolysis take place?
cytoplasm
where does the Krebs cycle take place?
mitochondrion
where does the electron transport chain take place?
mitochondrion
what is the starting molecule for glycolysis?
glucose
what is the starting molecule for the Krebs cycle?
pyruvic acid
what are the products of glycolysis?
pyruvic acid, NADH, ATP
what compounds act as electron carriers in cellular respiration?
NAD+ and FAD
where does lactic acid fermentation take place?
muscle cells
what are the two types of fermentation that was studied?
alcoholic and lactic acid
what type of fermentation gives bread its spongy texture?
alcoholic fermentation
what type of fermentation converts milk into yogurt?
lactic acid fermentation
how does fermentation keep glycolysis going in the absence of oxygen?
NAD+ is regenerated
if oxygen is present, what follows glycolysis?
Krebs Cycle
why is respiration called an aerobic process?
because it requires oxygen
what condition will prevent the Krebs cycle from occurring?
if fermentation occurs; lack of oxygen
what does the Krebs cycle produce?
electron carriers
what gas is given off by the Krebs cycle?
carbon dioxide
the energy of the electrons passing along the electron transport chain is used to make what?
ATP
how are cellular respiration and photosynthesis almost opposite processes?
photosynthesis uses carbon dioxide and cellular respiration puts it back
what organelle is responsible for cellular respiration?
mitochondrion
what part of cellular respiration is shut down by cyanide?
electron transport chain
why do muscle cells produce more carbon dioxide during exercise?
CO2 is produced as a waste product;more glucose is broken down releasing energy
what molecules are responsible for passing high-energy electrons into the electron transport chain?
NADH and FADH2