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Multiple Choice
Which of the following reactions would be endergonic?
A
HCl → H+ + Cl-
B
C6H12O6 + 6 O2→ 6 CO2 + 6 H2O
C
ATP → ADP + Pi
D
All of the listed responses are correct.
E
glucose + fructose → sucrose
Verified step by step guidance
1
Understand the concept of endergonic reactions: Endergonic reactions require an input of energy to proceed, as they are not spontaneous. They typically involve the formation of complex molecules from simpler ones.
Analyze the given reactions to determine which involves the formation of a more complex molecule from simpler ones, indicating an endergonic process.
Consider the reaction: HCl → H+ + Cl-. This is a dissociation reaction where a compound breaks down into simpler components, typically exergonic.
Examine the reaction: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O. This is a combustion reaction where glucose is broken down, releasing energy, thus exergonic.
Review the reaction: glucose + fructose → sucrose. This involves the synthesis of a more complex molecule (sucrose) from simpler sugars (glucose and fructose), requiring energy input, thus endergonic.