BIOC 384 EXAM 1 CORRECT 100%
Select the TWO true statements below describing the standard free energy change
(delta G) and the equilibrium constant (Keq).
The equilibrium constant is equal to ratio of the concentration of reactants over products
at equilibrium.
If the value of the equilibrium constant is known, the value for the standard free energy
change can be determined.
The value for the standard free energy change is constant for a given reaction.
The standard free energy change is a function of enzyme concentration in the reaction.
That primary structure of a protein has all the information necessary to specify tertiary
structure. - ANSWERThat primary structure of a protein has all the information
necessary to specify tertiary structure.
A hydrogen bond can best be described as a
weak noncovalent interaction.
strong covalent interaction.
weak covalent interaction.
weak hydrophobic effect.
strong ionic interaction. - ANSWERweak noncovalent interaction.
Which of the following process are driven by the hydrophobic effect? Four numbered
processes are correct, choose the letter below that contains all four of the correct
numbered processes.
1. Dissolving sodium chloride in water to brine chicken.
2. Separation of oil and vinegar in salad dressing.
3. Ice melting in a cooler at a UA football game tailgate party.
4. Formation of a protein dimer through leucine and valine residues.
5. The interaction between antifreeze protein and ice crystals.
, 6. Protein folding of a globular protein that transports fatty acids.
7. The solubility of glucose in a solution of simple syrup.
8. The formation of limonene droplets on the surface of a mixed drink.
9. Movement of H2O through a porin channel in a bacterial membrane.
3, 5, 7, 9
1, 2, 3, 8
2, 4, 6, 8
2, 5, 6, 7
2, 3, 6, 9 - ANSWER2, 4, 6, 8
During eukaryotic DNA condensation, nucleosomes are packed together to form
genes.
chromatin.
genomes.
chromosomes.
histones. - ANSWERchromatin.
If the equilibrium constant (Keq) is greater than 1, what is the value of DeltaG o?
DeltaG o>1
DeltaG o>0
DeltaG o=0
DeltaG o<0 - ANSWERDeltaG o<0
Match the 4 amino acid structures below with each of the four chemical groups. Each
amino acid fits into only one chemical group Hydrophobic (HB), Charged (C),
Hydrophilic (HL), Aromatic (A).
Chemical groups: hydrophobic, hydrophilic, aromatic, charged
Select the TWO true statements below describing the standard free energy change
(delta G) and the equilibrium constant (Keq).
The equilibrium constant is equal to ratio of the concentration of reactants over products
at equilibrium.
If the value of the equilibrium constant is known, the value for the standard free energy
change can be determined.
The value for the standard free energy change is constant for a given reaction.
The standard free energy change is a function of enzyme concentration in the reaction.
That primary structure of a protein has all the information necessary to specify tertiary
structure. - ANSWERThat primary structure of a protein has all the information
necessary to specify tertiary structure.
A hydrogen bond can best be described as a
weak noncovalent interaction.
strong covalent interaction.
weak covalent interaction.
weak hydrophobic effect.
strong ionic interaction. - ANSWERweak noncovalent interaction.
Which of the following process are driven by the hydrophobic effect? Four numbered
processes are correct, choose the letter below that contains all four of the correct
numbered processes.
1. Dissolving sodium chloride in water to brine chicken.
2. Separation of oil and vinegar in salad dressing.
3. Ice melting in a cooler at a UA football game tailgate party.
4. Formation of a protein dimer through leucine and valine residues.
5. The interaction between antifreeze protein and ice crystals.
, 6. Protein folding of a globular protein that transports fatty acids.
7. The solubility of glucose in a solution of simple syrup.
8. The formation of limonene droplets on the surface of a mixed drink.
9. Movement of H2O through a porin channel in a bacterial membrane.
3, 5, 7, 9
1, 2, 3, 8
2, 4, 6, 8
2, 5, 6, 7
2, 3, 6, 9 - ANSWER2, 4, 6, 8
During eukaryotic DNA condensation, nucleosomes are packed together to form
genes.
chromatin.
genomes.
chromosomes.
histones. - ANSWERchromatin.
If the equilibrium constant (Keq) is greater than 1, what is the value of DeltaG o?
DeltaG o>1
DeltaG o>0
DeltaG o=0
DeltaG o<0 - ANSWERDeltaG o<0
Match the 4 amino acid structures below with each of the four chemical groups. Each
amino acid fits into only one chemical group Hydrophobic (HB), Charged (C),
Hydrophilic (HL), Aromatic (A).
Chemical groups: hydrophobic, hydrophilic, aromatic, charged
