Chapter 6 Test File Questions
12 Questions
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These are the test file questions for chapter 6 of LIFE
Questions and Answers
- 1.The sum total of all the chemical reactions in a living structure is called its:
- 2.Water held back by a dam represents what kind of energy?
- 3.What can never be created or destroyed?
- 4.Which of the following represents potential energy?
- A.
A. Chemical bonds
- B.
B. Concentration gradient
- C.
C. Electric charge imbalance
- D.
D. Both a and b
- E.
E. All of the above
- 5.The first law of thermodynamics states that the total energy in the universe is
- 6.In any system, the total energy includes usable and unusable energy. The unusable energy is a measure of the disorder of the system and is referred to as
- 7.A change in free energy is related to a change in
- A.
Temperature
- B.
Enthropy
- C.
Both
- 8.If G of a chemical reaction is negative and the change in entropy is positive, you can conclude that the reaction is
- 9.The standard free energy change for the hydrolysis of ATP to ADP + Pi is –7.3 kcal/mol. From this information one can conclude that the reaction is
- 10.Chemical equilibrium is a state in which G =
- 11.When ADP gains a phosphate to form ATP, energy is
- 12.If the enzyme phosphohexosisomerase is added to a 0.3 M solution of fructose 6-phosphate, and the reaction is allowed to proceed to equilibrium, the final concentrations are 0.2 M glucose 6-phosphate and 0.1 M fructose 6-phosphate. These data give an equilibrium constant of 2. What is the equilibrium constant if the initial concentration of fructose 6-phosphate is 3 M?
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