BIOCHEM 210 FINAL EXAM COMPLETE TEST
PAPER WITH CORRECT ANSWERS
◉ The H+ concentration of a solution is 7.9 x 10^-13 M. What is the
pH?
Answer: 12.1
pH = -log(7.9 x 10^-13)
◉ What represents the free-energy change of a reaction?
Answer: ΔG = Gibbs free energy
◉ What is the measure of heat content in a reaction?
Answer: ΔH = enthalpy
◉ What is the measure of order of the system in a reaction?
Answer: ΔS = entropy
◉ A fibrous protein is an example of a protein ___.
Answer: conformation
,◉ What is an example of protein conformation?
Answer: fibrous and globular
◉ Any molecule or ion that is necessary for an enzyme's function is
called:
Answer: cofactor
◉ In a particular cell, molecules X binds to an enzyme causing to
stop catalyzing reactions. Molecule X is called what?
Answer: inhibitor
◉ What is the function of lipids in cells?
Answer: 1. energy source/storage
2. structural role in membranes (myelin sheaths)
3. vitamins
4. basis for dye molecules (carotenoids)
◉ What is the function of carbohydrates in cells?
Answer: 1. structural role in DNA and RNA
2. intermediate in metabolism
3. energy source for cells
, ◉ In a particular cell, molecule X binds near the active site on an
enzyme causing it to slow catalyzing reactions. Molecules X is called
what?
Answer: uncompetitive inhibitor
◉ In a particular cell, molecule X binds to an enzyme at the active
site causing it to stop catalyzing reactions. Molecules X is called
what?
Answer: competitive inhibitor
◉ A particular lipid is solid at room temperature, so it is called:
Answer: fat
◉ A particular lipid is liquid at room temperature, so it is called:
Answer: oil
◉ What is the difference between saturated and unsaturated fatty
acids?
Answer: saturated fatty acid = no double bonds
unsaturated fatty acid = double bonds
◉ PUFA
PAPER WITH CORRECT ANSWERS
◉ The H+ concentration of a solution is 7.9 x 10^-13 M. What is the
pH?
Answer: 12.1
pH = -log(7.9 x 10^-13)
◉ What represents the free-energy change of a reaction?
Answer: ΔG = Gibbs free energy
◉ What is the measure of heat content in a reaction?
Answer: ΔH = enthalpy
◉ What is the measure of order of the system in a reaction?
Answer: ΔS = entropy
◉ A fibrous protein is an example of a protein ___.
Answer: conformation
,◉ What is an example of protein conformation?
Answer: fibrous and globular
◉ Any molecule or ion that is necessary for an enzyme's function is
called:
Answer: cofactor
◉ In a particular cell, molecules X binds to an enzyme causing to
stop catalyzing reactions. Molecule X is called what?
Answer: inhibitor
◉ What is the function of lipids in cells?
Answer: 1. energy source/storage
2. structural role in membranes (myelin sheaths)
3. vitamins
4. basis for dye molecules (carotenoids)
◉ What is the function of carbohydrates in cells?
Answer: 1. structural role in DNA and RNA
2. intermediate in metabolism
3. energy source for cells
, ◉ In a particular cell, molecule X binds near the active site on an
enzyme causing it to slow catalyzing reactions. Molecules X is called
what?
Answer: uncompetitive inhibitor
◉ In a particular cell, molecule X binds to an enzyme at the active
site causing it to stop catalyzing reactions. Molecules X is called
what?
Answer: competitive inhibitor
◉ A particular lipid is solid at room temperature, so it is called:
Answer: fat
◉ A particular lipid is liquid at room temperature, so it is called:
Answer: oil
◉ What is the difference between saturated and unsaturated fatty
acids?
Answer: saturated fatty acid = no double bonds
unsaturated fatty acid = double bonds
◉ PUFA
