What is substrate-level phosphorylation
? What is oxidative phosphorylation
? Explain how cellular respiration produces ATP from molecules
with high potential energy, such as glucose
? Describe the four components of cellular respiration? What
goes into each and comes out of each?
? What is fermentation? How are cellular respiration and
fermentation regulated?
? Describe how fermentation operates in the absence of the
electron transport chain?
? What does cellular respiration do? What is the chemical
equation? ? What is...
In comparing oxidative and substrate-level phosphorylation,
which of the following is unique to oxidative phosphorylation?
A.
ATP synthesis fueled by a proton motive force generated as a
result of the movement of electrons down an electron transport
chain.
B.
ATP synthesis that occurs as a result of coupling the exergonic
breakdown of a high-energy organic molecule to phosphorylation
C.
glucose oxidation
D.
NADH production
ATP synthesis in glycolysis substrate-level phosphorylation
The ATP that is generated in glycolysis is produced by substrate-level phosphorylation, a very different mechanism than the one used to produce ATP during oxidative phosphorylation. Phosphorylation reactions involve the addition of a phosphate group to another molecule.
Sort the statements into the appropriate bin depending on whether or not they correctly describe some aspect of substrate-level phosphorylation in glycolysis.
Compare and contrast the process of substrate-level
phosphorylation, oxidative phosphorylation, and
photophosphorylation. Provide one example of how each is used in a
biological cell.
Explain the difference between substrate-level phosphorylation
and oxidative phosphorylation? How many ATPs (net) are made by
substrate-level phosphorylation vs oxidative phosphorylation in
aerobic respiration? What role does chemiosmosis play?
Metabolic Process
NADH formed
FADH2 formed
CO2 formed
ATP formed by substrate level
~P
ATP formed by oxidative ~P
beta-oxidation
2
0
3
Kreb’s cycle
6
3
Food labels list that a gram of fat has 9 kcal of energy and
that a gram of carbohydrate (or protein) has 4 kcal of energy. A
mass to mass comparison, however, is misleading. A better
comparison is mol to mol, which corrects for differences in MW.
This can be done by comparing...
What is the difference between Oxidative and Substrate
level phosphorylation?
What occurs in Fermentation pathways? What is the
energy yield and where does it come from?