1
Biochemistry Exam Part 1 Questions
and Answers (100% Correct
Answers) Already Graded A+
Fibrous proteins Ans: long rod shaped molecules that are
insoluble in water and physically strong (usually of structural
© 2026 Assignment
importance)
globular proteins Ans: these are compact, generally rounded,
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and soluble in water.
Expert
Conjugated Protein Ans: protein combined with a nonprotein
component (lipid or carbohydrate)
Apoprotein Ans: protein component of a lipoprotein
Prosthetic group Ans: non-protein component of a
conjugated protein.
Holoprotein Ans: protein with prosthetic group
Identify which atoms of a peptide bond lay within the peptide
plane: Ans: Carbon Nitrogen Oxygen
Give four examples of conjugated proteins: Ans:
Glycoproteins - Protein + carbohydrate
Lipoproteins - Protein + lipid
Metalloproteins - protein + metal ion
, 2
Hemoprotein - Protein + heme group
primary structure of protein Ans: sequence of amino acids in
a polypeptide chain
secondary structure of protein Ans: protein structure is
formed by folding and twisting of amino acid chain
tertiary structure of protein Ans: 3D shape of protein
© 2026 Assignment
homologous protein Ans: have similiar amino acid sequences
and that have arisen from a common ancestral gene
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Expert
Invariant amino acid residue Ans: those that have identical
residue in all homologues protein
Presumed to be essential for the protein's function.
Describe the two primary types of patterns found in the
secondary structure of proteins Ans: alpha helix
Beta Pleated Sheet
stabilized by hydrogen bonds between the carbonyl and amine
groups of the amino acid backbone.
List the characteristics of the Alpha-Helical secondary
structure and explain why it is commonly found in
transmembrane regions Ans: Stabilized by hydrogen bonds
between C=O and NH of every fourth peptide bond
Complete turn of helix occurs every 3.6 amino acid residues
Biochemistry Exam Part 1 Questions
and Answers (100% Correct
Answers) Already Graded A+
Fibrous proteins Ans: long rod shaped molecules that are
insoluble in water and physically strong (usually of structural
© 2026 Assignment
importance)
globular proteins Ans: these are compact, generally rounded,
Guru01 - Stuvia
and soluble in water.
Expert
Conjugated Protein Ans: protein combined with a nonprotein
component (lipid or carbohydrate)
Apoprotein Ans: protein component of a lipoprotein
Prosthetic group Ans: non-protein component of a
conjugated protein.
Holoprotein Ans: protein with prosthetic group
Identify which atoms of a peptide bond lay within the peptide
plane: Ans: Carbon Nitrogen Oxygen
Give four examples of conjugated proteins: Ans:
Glycoproteins - Protein + carbohydrate
Lipoproteins - Protein + lipid
Metalloproteins - protein + metal ion
, 2
Hemoprotein - Protein + heme group
primary structure of protein Ans: sequence of amino acids in
a polypeptide chain
secondary structure of protein Ans: protein structure is
formed by folding and twisting of amino acid chain
tertiary structure of protein Ans: 3D shape of protein
© 2026 Assignment
homologous protein Ans: have similiar amino acid sequences
and that have arisen from a common ancestral gene
Guru01 - Stuvia
Expert
Invariant amino acid residue Ans: those that have identical
residue in all homologues protein
Presumed to be essential for the protein's function.
Describe the two primary types of patterns found in the
secondary structure of proteins Ans: alpha helix
Beta Pleated Sheet
stabilized by hydrogen bonds between the carbonyl and amine
groups of the amino acid backbone.
List the characteristics of the Alpha-Helical secondary
structure and explain why it is commonly found in
transmembrane regions Ans: Stabilized by hydrogen bonds
between C=O and NH of every fourth peptide bond
Complete turn of helix occurs every 3.6 amino acid residues
