Consider the following reaction:
Glucose + ATP ↔Glucose -6-phosphate + ADP
- Using the information in the below determine Go for this reaction and comment on the spontaneity of this reaction.
- What the information does the Go parameters in the table below provides about the rate of the ATP hydrolysis.
- Below is the structure of glucose-6-phosphate. Identify which anomer does it represent?
|
Standard free energies of hydrolysis of some phosphorylated compounds |
|
|
compound |
Go (kJ mol-1) |
|
ATP (to ADP) |
-30.5 |
|
pyrophosphate |
-19.3 |
|
Glucose-1-phosphate |
-20.9 |
|
Gluose-6-phosphate |
-13.8 |
Homework Answers
1. Delta g° = -30.5-13.8+20.9 = -23.7 kj/mol
Since its is a negative quantity means the reaction is spontaneous in nature.
2. The hydrolysis of ATP to ADP has Delta g value -30.5 kilojoules per mole it means that hydrolysis of ATP is a spontaneous reaction.
3. It is beta anomer of glucose 6 phosphate
Add Answer to:
Consider the following reaction:
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Using the information in the...
Shown is acetyl phosphate. Say a new enzyme uses acetyl phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP —> acetate + ATP). What is the standard free energy change of this reacti...
Shown is acetyl phosphate. Say a new enzyme uses acetyl
phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP
—> acetate + ATP). What is the standard free energy change of
this reaction?
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please help! thanks TABLE 12-4 Standard Free Energy Change for Phosphate Hydrolysis Compound AGⓇ' (kJ. mol-')...
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TABLE 12-4 Standard Free Energy Change for Phosphate Hydrolysis Compound AGⓇ' (kJ. mol-') Phosphoenolpyruvate -61.9 1,3-Bisphosphoglycerate -49.4 ATP → AMP + PP, -45.6 Phosphocreatine -43.1 ATP ADP + P -30.5 Glucose-1-phosphate -20.9 PP, 2P, -19.2 Glucose-6-phosphate -13.8 Glycerol-3-phosphate -9.2 thioester bond AGⓇ' = -31.5 kJ•mol-1 H20 O CH3 -C-s-CoA I CH3 -C-0- + COA-SH Acetyl-CoA The formation of acetyl CoA from acetate is an ATP driven reaction: Acetate + ATP + COA <--> acetyl COA + AMP...
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