I need help solving these questions. I think that is the answer but I would like

Question

I need help solving these questions. I think that is the answer but I would like to know how to solve it and why the others cannot be the answer. Thank you!

24. The AG' of the complete oxidation of NTE ON THE EXAM paper you are touching is glucose is -2,840 kJ/mole. The almost all The paper you are touching is probably at room temperature even though the oxidation is hugely why? the a. the products of the reaction are more complex than the reactants. b. the system takes up heat from its surroundings c. activation energy has not been supplied d. the products of the reaction are more disordered than the reactants. e. paper is now burning 25. Cyclic-AMP is just a small molecule, but is considered to be an information amplifier because it: a. is broken down to AMP by cyclic nucleotide-phosophodiesterase. b. tums on G-protein. c. inflames G-protein receptors. d. alkosterically activates a protein kinase. e. opens membrane channels.

Explanation / Answer

24. The paper is at room temperature because the natural oxidation of glucose is an extremely slow process which is because the intermediate that needs to form for oxidation to proceed has very high activation energy and until that is supplied from external source the reaction is not initiated. So, as the reaction is proceeding infinitesimally slowly so no heat is generated.

25. Cyclic-AMP is a part of intracellular signalling system. It binds with protein kinase A (PKA) degrading it to relese two catalytic units from two regulatory units and help it to phosphorylate substrate proteins. That's why its called an inofrmation amplifier.

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