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1. What two enzymes in glycolysis are regulated by high ATP concentrations?

1. What two enzymes in glycolysis are regulated by high ATP concentrations?

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. What two enzymes in glycolysis are regulated by high ATP concentrations? Write out the substrates, products and enzyme involved for the two ATP producing steps in glycolysis. What bonds are cleaved in fructose-1,6-bisphosphate to form dihydroxyacetone phosphate and glyceraldehyde-3-phosphate? Phosphates are added to glucose in two separate steps to produce fructose-1,6- bisphosphate. (a) Which position ends up on the 3 C-product that is used for ATP production? (b) What is the function of the phosphate on the other carbon? What molecule acts as an oxidizing agent in glycolysis? When fructose is the carbon source what carbon is phosphorylated? What 3-carbon phosphorylated product results from aldolase B? Under anaerobic conditions what is the fate of pyruvate? What product of pyruvate is used to form citrate in the TCA cycle? Write out the substrates, products and enzymes responsible for the three steps oxidizing the original carbon skeleton of pyruvate releasing CO₂? What is the difference between substrate level phosphorylation (SLP) and oxidative phosphorylation? How many electrons are donated to the cytochrome chain at each site? List by complex I. complex II, complex III, complex IV.
Transcribed Image Text:1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. What two enzymes in glycolysis are regulated by high ATP concentrations? Write out the substrates, products and enzyme involved for the two ATP producing steps in glycolysis. What bonds are cleaved in fructose-1,6-bisphosphate to form dihydroxyacetone phosphate and glyceraldehyde-3-phosphate? Phosphates are added to glucose in two separate steps to produce fructose-1,6- bisphosphate. (a) Which position ends up on the 3 C-product that is used for ATP production? (b) What is the function of the phosphate on the other carbon? What molecule acts as an oxidizing agent in glycolysis? When fructose is the carbon source what carbon is phosphorylated? What 3-carbon phosphorylated product results from aldolase B? Under anaerobic conditions what is the fate of pyruvate? What product of pyruvate is used to form citrate in the TCA cycle? Write out the substrates, products and enzymes responsible for the three steps oxidizing the original carbon skeleton of pyruvate releasing CO₂? What is the difference between substrate level phosphorylation (SLP) and oxidative phosphorylation? How many electrons are donated to the cytochrome chain at each site? List by complex I. complex II, complex III, complex IV.
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