Biochem ACS Study Guide | COMPLETE QUESTIONS AND
ANSWERS | 100% RATED CORRECT | 100% VERFIED |
ALREADY GRADED A+|GET A+
Which Amino Acids will be charged at pH 7? - (answer)DEHRK: Aspartic Acid
(Asp), Glutamic Acid (Glu), Histidine (His), Arginine (Arg), Lysine (Lys)
Which amino acids will have a negative charge at pH 7? - (answer)D&E: Aspartic
Acid (Asp) and Glutamic acid (Glu)
Which amino acids will have a positive charge at pH 7? - (answer)H, R, K:
Histidine (His), Arginine (Arg), Lysine (Lys)
Which of the following sequences are most likely to be in the interior core of a
globular protein?
(A) ITFWLI (B) IKFGVA (C) DKYPGE (D) MPCDNA - (answer)The interior is
hydrophilic so sequence: ITFWLI is most likely to be in the interior because there
is no charged amino acids and had the lowest percentage of polar amino acids.
, How are beta sheets stabilized in proteins? - (answer)Hydrogen bonding between
peptide backbone groups.
Fibrous Proteins - (answer)Not water soluble, not flexible in secondary structure,
highly repetitive primary structure, elongated structure; 2 α keratin polypeptides
each which forms an α helix twisting around each other to form a left handed coil.
Globular Proteins - (answer)Water soluble, flexible in secondary structure, not
necessarily highly repetitive, size and ability to associate into a larger structure
varies.
Gel filtration elution - (answer)Largest elutes first
Competitive inhibitor - (answer)Vmax stays the same different km
ANSWERS | 100% RATED CORRECT | 100% VERFIED |
ALREADY GRADED A+|GET A+
Which Amino Acids will be charged at pH 7? - (answer)DEHRK: Aspartic Acid
(Asp), Glutamic Acid (Glu), Histidine (His), Arginine (Arg), Lysine (Lys)
Which amino acids will have a negative charge at pH 7? - (answer)D&E: Aspartic
Acid (Asp) and Glutamic acid (Glu)
Which amino acids will have a positive charge at pH 7? - (answer)H, R, K:
Histidine (His), Arginine (Arg), Lysine (Lys)
Which of the following sequences are most likely to be in the interior core of a
globular protein?
(A) ITFWLI (B) IKFGVA (C) DKYPGE (D) MPCDNA - (answer)The interior is
hydrophilic so sequence: ITFWLI is most likely to be in the interior because there
is no charged amino acids and had the lowest percentage of polar amino acids.
, How are beta sheets stabilized in proteins? - (answer)Hydrogen bonding between
peptide backbone groups.
Fibrous Proteins - (answer)Not water soluble, not flexible in secondary structure,
highly repetitive primary structure, elongated structure; 2 α keratin polypeptides
each which forms an α helix twisting around each other to form a left handed coil.
Globular Proteins - (answer)Water soluble, flexible in secondary structure, not
necessarily highly repetitive, size and ability to associate into a larger structure
varies.
Gel filtration elution - (answer)Largest elutes first
Competitive inhibitor - (answer)Vmax stays the same different km
