#Question id: 49
#1. Molecules and their Interaction Relevant to Biology
The equilibrium constant, Keq, for the following reaction is 2 × 105 M: If the measured cellular concentrations are [ATP] = 5 mM, [ADP] = 0.5 mM, and [Pi] = 5 mM, on the basis of the above information calculate the Keq in living cells?
#Question id: 50
#1. Molecules and their Interaction Relevant to Biology
The enzyme fumarase catalyzes the reverse hydration of fumaric acid to l-malate, but it will not catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an example of:
#Question id: 51
#1. Molecules and their Interaction Relevant to Biology
If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 105 M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.
#Question id: 52
#1. Molecules and their Interaction Relevant to Biology
Choose the incorrect option regarding Isomerism.
#Question id: 55
#1. Molecules and their Interaction Relevant to Biology
The standard free energy change for the reaction A → B is −15.0 kJ · mol−1. What is the equilibrium constant for the reaction at 25°C?
#Question id: 56
#1. Molecules and their Interaction Relevant to Biology
Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?