PEP and 2-PG have similar amounts of potential metabolic energy with respect to decomposition to Pi, CO2 and H2O, but the enolase reaction:a.creates a much more unstable reactive intermediate.b.rearranges 2-PG to a form with greater binding potential to the enzyme.c.rearranges 2-PG into a form from which more potential energy can be released by hydrolysis.d.changes the DG of the reaction to increase the potential energy.e.none are true.2.Lactate produced by anaerobic muscle tissue is:a.stored in muscle until oxygen is available.b.further reduced to glycerol in muscle.c.transferred to erythrocytes to release oxygen from hemoglobin.d.carried by the blood to the liver for gluconeogenesis and converted to glucose.e.none of the above. 3. Which of the following enzymes is NOT used when fructose is metabolized to pyruvate in the liver?a.triose phosphate isomeraseb.glyceraldehyde-3-phospate dehydrogenasec.glucokinased.phosphofructokinase-1e.pyruvate kinase

Glycolysis occurs in the cytoplasm of the cell. Glycolysis converts glucose into two molecules of…

Answered: PEP and 2-PG have similar amounts of…

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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PEP and 2-PG have similar amounts of potential metabolic energy with respect to decomposition to P_i, CO₂and H₂O, but the enolase reaction:

a.	creates a much more unstable reactive intermediate.
b.	rearranges 2-PG to a form with greater binding potential to the enzyme.
c.	rearranges 2-PG into a form from which more potential energy can be released by hydrolysis.
d.	changes the DG of the reaction to increase the potential energy.
e.	none are true.

2.Lactate produced by anaerobic muscle tissue is:

a.	stored in muscle until oxygen is available.
b.	further reduced to glycerol in muscle.
c.	transferred to erythrocytes to release oxygen from hemoglobin.
d.	carried by the blood to the liver for gluconeogenesis and converted to glucose.
e.	none of the above.

3. Which of the following enzymes is NOT used when fructose is metabolized to pyruvate in the liver?

a.	triose phosphate isomerase
b.	glyceraldehyde-3-phospate dehydrogenase
c.	glucokinase
d.	phosphofructokinase-1
e.	pyruvate kinase

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