On reaching the railway station, you find that the train you wanted to catch is just to start and there is hardly any time for purchasing the ticket. The best thing for you is to:

#Question id: 49

#Unit 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

#Unit 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

#Unit 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

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect option regarding Isomerism.

#Question id: 55

#Unit 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

#Unit 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?