Ç00 ÇH2OH он он он NHCOCH3 Hyaluronate All of the following are true regarding hyaluronate except one statement. Which statement is incorrect? O Two residues are connected by ß(1-3) glycosidic bond O It is a glycosaminoglycan O This is a key component of the structural polymer known as chitin. O It is a component of a proteoglycan known as aggrecan that is found in cartilage.

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
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CH2OH
он
OH
он
NHCOCH3
Hyaluronate
All of the following are true regarding hyaluronate
except one statement.
Which statement is incorrect?
Two residues are connected by B(1-3) glycosidic bond
It is a glycosaminoglycan
This is a key component of the structural polymer
known as chitin.
It is a component of a proteoglycan known as
aggrecan that is found in cartilage.
Transcribed Image Text:CH2OH он OH он NHCOCH3 Hyaluronate All of the following are true regarding hyaluronate except one statement. Which statement is incorrect? Two residues are connected by B(1-3) glycosidic bond It is a glycosaminoglycan This is a key component of the structural polymer known as chitin. It is a component of a proteoglycan known as aggrecan that is found in cartilage.
The reaction below occurs in nearly all human cells.
It is catalyzed by the enzyme enolase.
CO-
CO-
enolase
-OPO3
OPO3
+ H20
ČH,OH
AGO'=+1.7 kJ/mol
CH2
2PGA
PEP
Under cellular conditions, the AG is -3.3 kJ/mol.
Which of the following could account for these
changes in cellular AG compared to the standard
biological free energy?
The concentration of 2PGA is 7 times higher than PEP.
The concentration of PEP is 7 times higher than 2PGA
Enolase lowers the activation energy of the transition
state.
The release of water from 2PGA is a form of
energy
coupling.
Transcribed Image Text:The reaction below occurs in nearly all human cells. It is catalyzed by the enzyme enolase. CO- CO- enolase -OPO3 OPO3 + H20 ČH,OH AGO'=+1.7 kJ/mol CH2 2PGA PEP Under cellular conditions, the AG is -3.3 kJ/mol. Which of the following could account for these changes in cellular AG compared to the standard biological free energy? The concentration of 2PGA is 7 times higher than PEP. The concentration of PEP is 7 times higher than 2PGA Enolase lowers the activation energy of the transition state. The release of water from 2PGA is a form of energy coupling.
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