Bio 340 Quiz 1 Is an organism that can be experimentally
studied instead of a more complicated
1. Pentoses are significant in organism.
cells because Group of answer Is a term used for viruses because they are not
considered alive.
choices
They are the sugar component of
deoxyribonucleotides and
ribonucleotides. They are the monomers 6. A phospholipid bilayer is stabilized by:
that polymerize into glycogen or starch.
They are part of the R groups of amino
acids. They are added to glycerol to
make triacylglycerides.
2. Condensation
reactions Group of
answer choices
Result in break down of biological
macromolecules into their precursors.
Have energy of activations that are always
larger than hydrolysis reactions.
Yield water molecules as one of the
products. Lead to release of Gibbs free
energy.
3. As proteins move from primary
structure to quaternary structure,
Group of answer choices
They are becoming denatured.
They are reducing the disulfide bonds
between their cysteine residues.
They are decreasing their Gibbs free
energy. They are forming new peptide
bonds.
4. Enzymes
Group of answer choices
Are required only in endothermic, +∆G
reactions. Are required only in exothermic, -
∆G reactions. Lower the energy of activation,
but do not change the direction of a
reaction.
Can replace the need for ATP-coupling in
biological reactions.
5. A experimental
model system: Group of
answer choices
Refers to structural models of the biological
macromolecules.
Is an open system which exchanges Gibbs
free energy with its surrounding.
, Group of answer choices specific function(s) of a protein.
Hydrogen bonds between
triacylglycerides. Hydrophobic 10. DNA is a negatively charged
interactions between triacylglycerides macromolecule. Which amino acid is
and polar interactions with water. most likely to be found in the DNA-
Hydrogen bonds between binding domain of a protein?
diacylglycerides. Hydrophobic
interactions between diacylglycerides Group of answer choices
and polar interactions with water. Negatively charged aspartic acid because
DNA is positively charged.
Hydrophobic amino acids such as phenylalanine
7. ATP
because DNA is a non-polar macromolecule.
Coupling Cysteine because it forms disulfide bonds
with the DNA backbone
Involves Group Positively charged arginine because DNA is
of answer negatively charged
choices
Covalent linkage of an ATP molecule to
reactants to drive endothermic
reactions.
Covalent linkage of RNA macromolecules
to reactants to drive endothermic
reactions.
Covalent linkage of a phosphate to
reactants to drive endothermic reactions.
Hydrogen bonding of Adenine with
Thymine to drive endothermic
reactions.
8. Molecular chaperones are proteins
that play a role
Group of answer choices
In the degradation of unfolded
proteins. In the proper folding
of proteins.
In the formation of peptide bonds.
In phosphorylation of serines, threonines,
or tyrosines.
9. A
protein
domain
Group of
answer
choices
Is a disorganized region of a protein.
Directs interactions with other proteins
but not enzymatic function of the
protein.
Is a region of protein that aids in its own
folding and is then removed.
Is a discrete folded region that directs the
studied instead of a more complicated
1. Pentoses are significant in organism.
cells because Group of answer Is a term used for viruses because they are not
considered alive.
choices
They are the sugar component of
deoxyribonucleotides and
ribonucleotides. They are the monomers 6. A phospholipid bilayer is stabilized by:
that polymerize into glycogen or starch.
They are part of the R groups of amino
acids. They are added to glycerol to
make triacylglycerides.
2. Condensation
reactions Group of
answer choices
Result in break down of biological
macromolecules into their precursors.
Have energy of activations that are always
larger than hydrolysis reactions.
Yield water molecules as one of the
products. Lead to release of Gibbs free
energy.
3. As proteins move from primary
structure to quaternary structure,
Group of answer choices
They are becoming denatured.
They are reducing the disulfide bonds
between their cysteine residues.
They are decreasing their Gibbs free
energy. They are forming new peptide
bonds.
4. Enzymes
Group of answer choices
Are required only in endothermic, +∆G
reactions. Are required only in exothermic, -
∆G reactions. Lower the energy of activation,
but do not change the direction of a
reaction.
Can replace the need for ATP-coupling in
biological reactions.
5. A experimental
model system: Group of
answer choices
Refers to structural models of the biological
macromolecules.
Is an open system which exchanges Gibbs
free energy with its surrounding.
, Group of answer choices specific function(s) of a protein.
Hydrogen bonds between
triacylglycerides. Hydrophobic 10. DNA is a negatively charged
interactions between triacylglycerides macromolecule. Which amino acid is
and polar interactions with water. most likely to be found in the DNA-
Hydrogen bonds between binding domain of a protein?
diacylglycerides. Hydrophobic
interactions between diacylglycerides Group of answer choices
and polar interactions with water. Negatively charged aspartic acid because
DNA is positively charged.
Hydrophobic amino acids such as phenylalanine
7. ATP
because DNA is a non-polar macromolecule.
Coupling Cysteine because it forms disulfide bonds
with the DNA backbone
Involves Group Positively charged arginine because DNA is
of answer negatively charged
choices
Covalent linkage of an ATP molecule to
reactants to drive endothermic
reactions.
Covalent linkage of RNA macromolecules
to reactants to drive endothermic
reactions.
Covalent linkage of a phosphate to
reactants to drive endothermic reactions.
Hydrogen bonding of Adenine with
Thymine to drive endothermic
reactions.
8. Molecular chaperones are proteins
that play a role
Group of answer choices
In the degradation of unfolded
proteins. In the proper folding
of proteins.
In the formation of peptide bonds.
In phosphorylation of serines, threonines,
or tyrosines.
9. A
protein
domain
Group of
answer
choices
Is a disorganized region of a protein.
Directs interactions with other proteins
but not enzymatic function of the
protein.
Is a region of protein that aids in its own
folding and is then removed.
Is a discrete folded region that directs the
