1. which of the following statements is false concerning the molecules of life? A. they are not stable in the presence of free oxygen. b. they form spontaneously under current earth conditions. C. Cellular mechanisms safeguard these molecules. D. they control where cellular energy changes occur.
2. The activation energy of a reaction refers to the minimum amount of energy: A. in the products B. released by the reaction c. in the reactants D. necessary to cause it to proceed on its own.
3. CO2 and H2O will not form glucose on their own because: A. the bonds of CO2 and H2O are too stable to be broken without an input of energy B. H2O does not contain sufficient energy C. CO2 does not contain sufficient energy D. the concentration of CO2 is too low in the atmosphere.
4. All of the following are true of the process of phosphorylation EXCEPT that: A. a molecule gains a phosphate group. B. molecules become less stable C. it is used to prime molecules to react. D. it produces ADP from ATP.
5. For an enzyme to function it requires: A. a suitable substrate B. oxygen C. ATP D. a considerable amount of activation energy
6. The activation energy for a reaction: A. is less when enzymes are present. b. puts the substrate at its transition state. C. allows greater interaction of substrate with the active site. D. is all of these
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2. The activation energy of a reaction refers to the minimum amount of energy: A. in the products B. released by the reaction c. in the reactants D. necessary to cause it to proceed on its own.
3. CO2 and H2O will not form glucose on their own because: A. the bonds of CO2 and H2O are too stable to be broken without an input of energy B. H2O does not contain sufficient energy C. CO2 does not contain sufficient energy D. the concentration of CO2 is too low in the atmosphere.
4. All of the following are true of the process of phosphorylation EXCEPT that: A. a molecule gains a phosphate group. B. molecules become less stable C. it is used to prime molecules to react. D. it produces ADP from ATP.
5. For an enzyme to function it requires: A. a suitable substrate B. oxygen C. ATP D. a considerable amount of activation energy
6. The activation energy for a reaction: A. is less when enzymes are present. b. puts the substrate at its transition state. C. allows greater interaction of substrate with the active site. D. is all of these
.