I. True or False. 50 points (10 eachRead the following statements and indicate w
ID: 146967 • Letter: I
Question
I. True or False. 50 points (10 eachRead the following statements and indicate whether the statement is true or false. For extra credit (5 points each) explain how the false statements are not true. 1. In general, non-covalent interaction energies exceed covalent bond energies, such that the DNA double helix is stable. 2. Two anions will experience varying degrees of repulsive force in a cell, with the magnitude dependent upon the pKa of the local environment. 3. If heat is absorbed and entropy is decreased for a given biochemical process, the process will not occur at any temperature. 4. Several phosphorylated biomolecules release more free energy upon hydrolysis than ATP, ensuring that ATP can be synthesized from ADP. 5. R-form bacteria can be transformed to a pathogenic strain by incubating the cells with an S-form bacterial extract that has been heat killed and treated with deoxyribonuclease and protease, as long as the extract was cooled slowly so that the transforming principle could be reformed.Explanation / Answer
5. False. Because s form are treated with nuclease and R forms are themselve resistant.
4. False. ATP :40 KJ, Phosphorylation: -30.5KJ
3. False. When temperature increases reaction occurs.
2. True. pka value determines the acidity and basicity. And the repulsions or interactions between the Ions is directly proportional to pka values.
1. True. Non covalent bonds are H- bonds which are more in number in a DNA helix required to stabilize it.