Quiz 7a Flashcards
LACKS isolectric pH conversion and structure
a typical cell has almost a dozen different proteins
false
salt bridges are actually ionic bonds
true
a disulfide bond is the strongest of the side chain interactions
true
hair permanents involve destroying and then creating new disulfide bonds
true
in sickle cell anemia the hemoglobin molecule is not a sphere like normal hemoglobin
true
in electrophoresis using a buffer with pH 6.0 aspartic acid would move to the + electrode
true
most amino acids found in nature are L amino acids
false
anti-diuretic will reduce the amount of water excreted
true
the peripheral proteins in cell membrane are used to make protein channels
false
an accidental replacement of one wrong amino acid in the primary structure of a protein can cause major physiological changes
true
how many different tetra peptides can be formed from
tyrosine, alanine, and valine
81
3x3x3x3
which level of protein structure does NOT involve hydrogen bonding
primary
which amino acids would be found only on the INSIDE of a globular protein
amino acids with non-polar side chains
which is the smallest
enzyme, vasopressin, glucagon, immunoglobulins
vasopressin
which is the largest
typical enzyme, oxytocin, insulin, immunoglobulin
immunoglobulin
hydrogen bonding of the “O” in the amide and the “H” from the nitrogen backbone
2
B sheets
2
disulfide bonding
3
salt bridges
3
amino acid sequencing
1
more than one polypeptide chain linked together
4
hydrophobic interaction
3
charge on glutamic acid at 6.0 pH
-1
charge on glutamic acid at
pH 13
-2
