1 The side chain of valine is not polar because it does not havetwo types of atoms that have large differences inelectronegativity
a.) True b.) False
2 Ethanol is a polar molecule because there are largedifferences in electronegativity of the atoms and the molecule isasymmetric in shape.
a.) True b.) False
3 Which best describes a protein that is found in thecytosol?
a.) Polar amino acids will be found on the surface b.) Acidicamino acids will be found on the surface
c.) Basic amino acids will be found on the surface d.) Non-polaramino acids will be found in the interior
e.) All of the above
4 What will likely happen if two glutamates at pH 5 are next toeach other in a polypeptide chain?
a.) The side chains of these amino acids will be uncharged andthere will be no effect.
b.) The side chains of these amino acids will be charged andthey will attract each other.
c.) The side chains of these amino acids will be charged andthey will repel each other.
d.) Not enough information is given to determine the effect.
5 The difference between fetal and adult hemoglobin with regardto oxygen binding occurs because fetal hemoglobin has an amino acidsubstitution in one of its chains that results in a serine beingreplaced by a histidine.
a.) True b.) False
1 The side chain of valine is not polar because it does not havetwo types of atoms that have large differences inelectronegativity
a.) True b.) False
2 Ethanol is a polar molecule because there are largedifferences in electronegativity of the atoms and the molecule isasymmetric in shape.
a.) True b.) False
3 Which best describes a protein that is found in thecytosol?
a.) Polar amino acids will be found on the surface b.) Acidicamino acids will be found on the surface
c.) Basic amino acids will be found on the surface d.) Non-polaramino acids will be found in the interior
e.) All of the above
4 What will likely happen if two glutamates at pH 5 are next toeach other in a polypeptide chain?
a.) The side chains of these amino acids will be uncharged andthere will be no effect.
b.) The side chains of these amino acids will be charged andthey will attract each other.
c.) The side chains of these amino acids will be charged andthey will repel each other.
d.) Not enough information is given to determine the effect.
5 The difference between fetal and adult hemoglobin with regardto oxygen binding occurs because fetal hemoglobin has an amino acidsubstitution in one of its chains that results in a serine beingreplaced by a histidine.
a.) True b.) False
