Test Bank for Biochemistry A Short Course 5th Edition By Justin Hines, Catherine Reinke, John Tymoczko

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Test Bank for Biochemistry A Short Course 5th
Edition By Justin Hines, Catherine Reinke,
John Tymoczko



What type of interactions is NOT a weak interaction?
a. nuclear interactions
b. salt bridges
c. van der Waals interactions
d. ionic bonds
e. hydrogen bonds ANSWER: a




What is the amount of energy needed to apply a 1-newton force over a distance of 1 angstrom? a.
1010 J

b. 10 –10 J
1J
c.
d. 10 J
e. 1 kcal
ANSWER: b



What is the amount of energy needed to raise the temperature of 2 kilograms of water from 14.5°C to 15.5°C?
a. 2J
b. 2 kJ
c. 2 cal
d. 20 cal


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e.2 kcal
ANSWER: e



How does Coulomb's energy depend on the distance (r) between the two interacting corpuscles?
a. directly proportional to r
b.
directly proportional to r2
c.
inversely proportional to r
d.
inversely proportional to r2
e.
directly proportional to 2r
ANSWER: d

Molecules that are readily soluble in water are considered:
a. nonpolar.
b. polar.
c. zwitterionic.
d. volatile.
e. dielectric. ANSWER: b




The interaction that is described by Coulomb's law is called:
f. hydrophobic.
g. weak.
h. electrostatic.
i. hydrogen.
j. physical. ANSWER: c




What would be the solubility of a salt in a solvent with a low dielectric constant? a. excellent
b. good
c. suitable
d. poor
e. exclusive ANSWER: d



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