Energetics of Biological Reactions and ATP - MCAT Chemical and Physical Foundations of Biological Systems Quiz

ATP stores energy through its ability to lose a phosphate group to form ADP in the following reaction

$ATP + $H_{2}$O \rightarrow ADP + phosphate$

At body temperature, the thermodynamic values for ATP hydrolysis are as follow.
$\Delta G=-30$\frac{kJ}{mol}$$
$\Delta H=-20$\frac{kJ}{mol}$$
$\Delta S=34$\frac{kJ}{mol}$$

Glycolysis is an energy-liberating process ( $\Delta G=-218$\frac{kJ}{mol}$$ , $\Delta H=-20$\frac{kJ}{mol}$$ ) that is coupled with the conversion of two ADP molecules into two ATP molecules according to the following reaction.

$Glucose + 2ADP + 2 phosphate \rightarrow 2 lactate + 2ATP + $2H_{2}$O$

Glycolysis results in which of the following?

Energetics of Biological Reactions and ATP Practice Test

$C_$6H_{12}$O_6+O_2\rightarrow CO_2+H_2O$

Which of the following is true, assuming the reaction goes to completion?

I. There is an increase in $\DeltaS$ $\Delta S$ , entropy

II. $\Delta H < 0$

III. At equilibrium, $\Delta G = 0$

IV. Oxygen is the reducing agent

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