BCH 451 EXAM 1 QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Alpha-helix
a type of secondary structure commonly found in proteins which is characterized by 3.6
residues per turn and a phi angle of -57 degrees and a psi angle of -47 degrees for a
right-handed helix and a phi angle of 57 degrees and a psi angle of 47 degrees for a
left-handed helix.
Alanine
an amino acid with an aliphatic or methyl side chain functional group.
Amino Acid
a biomolecule containing an amino group, a carboxylic acid group, a proton and another
functional group attached to the same carbon=an alpha amino carboxylic acid.
Amphibolic
a metabolic pathway which has the characteristics of both anabolism and catabolism.
Anabolic
a metabolic pathway which consumes energy (ATP) to synthesize biomolecules.
Anomer
a chiral center which is not initially present in a molecule and which is created by
intramolecular bonding.
Arginine
an amino acid with a guanidinium side chain functional group.
Asparagine
, an amino acid with an amide side chain functional group.
Aspartate
an amino acid with a carboxylic acid side chain functional group.
Assay
an analytical procedure in which an amount or concentration of an unknown is
determined by comparing its response or reaction to that obtained by a known amount
or concentration of the same or similar material.
Beta-sheet
a type of secondary structure commonly found in proteins which is characterized by two
linear strands of the polypeptide backbone lying side by side and connected with
hydrogen bonds and which is characterized by a phi angle of -119 degrees and a psi
angle of +113 degrees for parallel beta-sheets and a phi angle of -139 degrees and a
psi angle of +135 degrees for anti-parallel beta-sheets.
Buffer
a solution of weak acid or base which is present in acid-base pair which resists changes
in pH when another acid or base is added.
Carbohydrate
polyhydroxyl ketones or polyhydroxyl aldehydes and their derivatives.
Catabolic
a metabolic pathway which produces energy (ATP).
Chaotropic Agent
"chaos creating" agents-molecules which denature biomolecules.
Chemical Isomers
SOLUTIONS VERIFIED
Alpha-helix
a type of secondary structure commonly found in proteins which is characterized by 3.6
residues per turn and a phi angle of -57 degrees and a psi angle of -47 degrees for a
right-handed helix and a phi angle of 57 degrees and a psi angle of 47 degrees for a
left-handed helix.
Alanine
an amino acid with an aliphatic or methyl side chain functional group.
Amino Acid
a biomolecule containing an amino group, a carboxylic acid group, a proton and another
functional group attached to the same carbon=an alpha amino carboxylic acid.
Amphibolic
a metabolic pathway which has the characteristics of both anabolism and catabolism.
Anabolic
a metabolic pathway which consumes energy (ATP) to synthesize biomolecules.
Anomer
a chiral center which is not initially present in a molecule and which is created by
intramolecular bonding.
Arginine
an amino acid with a guanidinium side chain functional group.
Asparagine
, an amino acid with an amide side chain functional group.
Aspartate
an amino acid with a carboxylic acid side chain functional group.
Assay
an analytical procedure in which an amount or concentration of an unknown is
determined by comparing its response or reaction to that obtained by a known amount
or concentration of the same or similar material.
Beta-sheet
a type of secondary structure commonly found in proteins which is characterized by two
linear strands of the polypeptide backbone lying side by side and connected with
hydrogen bonds and which is characterized by a phi angle of -119 degrees and a psi
angle of +113 degrees for parallel beta-sheets and a phi angle of -139 degrees and a
psi angle of +135 degrees for anti-parallel beta-sheets.
Buffer
a solution of weak acid or base which is present in acid-base pair which resists changes
in pH when another acid or base is added.
Carbohydrate
polyhydroxyl ketones or polyhydroxyl aldehydes and their derivatives.
Catabolic
a metabolic pathway which produces energy (ATP).
Chaotropic Agent
"chaos creating" agents-molecules which denature biomolecules.
Chemical Isomers
