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Chapter 8
How Cells release Chemical Energy
23
Biology
Undergraduate 1
10/26/2011

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Term
Friedreich's ataxia
Definition
disorder with defective mitochondria
Term
Aerobic pathway is used by
Definition
eukaryotic cells
Term
Fermentation
Definition
"anaerobic" used by prokaryotes and protist
Term
Aerobic and fermentation both begins with
Definition
glycolysis which generates two pyruvate
Term
Difference between fermentation and aerobic respiration
Definition
Fermentation is completed in cytoplasm and yeilds 2 ATP. Aerobic respiration is completed in mitochondria yeilding 36 ATP.
Term
Three stages of Aerobic respiration
Definition
1. Glycolysis
2. Acetyl-CoA formation and Krebs Cycle
3. Electron transfer phosphorylation
Term
How many ATP, NADH, and pyruvate is made in glycolysis and what does it need to start?
Definition
net ATP-2
NADH- 2
pyruvate- 2
it needs 2 ATP to start
Term
How many NADH, FADH2, CO2 and ATP is made in Acetyl-CoA and Krebs Cycle?
Definition
NADH- 8
FADH2- 2
CO2- 6
ATP- 2
Term
How many ATP is made in the electron transfer phosphorylation and what does it need?
Definition
it needs oxygen and it makes 32 ATP
Term
ENzymes of glycolysis convert glucose to?
Definition
pyruvate
Term
How many ATP is yeild at the end of aerobic respiration?
Definition
36 ATP
Term
Two pathways of fermentation
Definition
alcoholic fermentation and lactate fermentation
Term
Difference between alcoholic fermentation and lactate fermentation
Definition
Alcoholic fermentation-pyruvate is split into acetaldehyde and CO2 and acetaldehyde receives electrons and hydrogen from NADH, forming NAD+ and ethanol.
Lactate fermentation- pyruvate receives electron and hydrogen from NADH, forming NAD+ and lactate.
Term
Slow-twitch muscle fibers
Definition
"red" muscles makes ATP by aerobic respiration and have many mitochondria and dominate in prolonged activity.
Term
Fast-twitch muscle fibers
Definition
"white" muscle that makes ATP by lactate fermentation and have a few mitochondria and no myoglobin and sustain short burst of activity
Term
What percetn is adult's energy reserves in stored in fat
Definition
78%
Term
Compared to carbohydrates, fatty acid breakdown yeild more
Definition
ATP per carbon atom
Term
With food eatin, alternative energy sources in human body are
Definition
fats, complex carbohydrates, and proteins
Term
Cycle between photosynthesis and aerobic respiration
Definition
sunlight energy is taken in by photosynthesis which produces glucose and oxygen that aerobic respiration takes in and makes carbon dioxide and water which is needed in photosynthesis. Both have energy output such at ATP and heat
Term
Glycolysis starts and ends where
Definition
cytoplasm
Term
What does not form during glycolysis
Definition
FADH2
Term
In the third stage of aerobic respiration, ___ is the final acceptor of electrons from glucose.
Definition
Oxygen
Term
In alcoholic fermentation, ___ is the final acceptor of electrons stripped from glucose.
Definition
acetaldehyde
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