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Medical Biochemistry Unit 1 Week 1
Assessment Questions with Correct Answers |
Updated (100% Correct Answers)
Which of the following best describes tertiary structure? Answer:
Interactions between α-helices and β sheets to form a domain.
Tertiary structure is best described as the entire three-dimensional
conformation of a polypeptide including how secondary structural
features - helices, sheets, bends, turns and loops - assemble to form
domains and how these domains relate.
Which of the following best describes the structure of heme?
Answer: A planar porphyrin ring that binds iron
Heme is a prosthetic group that is planar and has a bound iron
center.
Covalent catalysis is used by many enzymes to cleave peptide
bonds. Which of the following amino acids would not facilitate this
type of catalysis? (Think of the structure of the R-group of these
amino acids) Answer: Valine
The R-group on valine does not have an active group to participate
in covalent catalysis. The most commonly participating amino acids
are cysteine, serine and histidine.
© 2025 All rights reserved
Medical Biochemistry Unit 1 Week 1
Assessment Questions with Correct Answers |
Updated (100% Correct Answers)
Which of the following best describes tertiary structure? Answer:
Interactions between α-helices and β sheets to form a domain.
Tertiary structure is best described as the entire three-dimensional
conformation of a polypeptide including how secondary structural
features - helices, sheets, bends, turns and loops - assemble to form
domains and how these domains relate.
Which of the following best describes the structure of heme?
Answer: A planar porphyrin ring that binds iron
Heme is a prosthetic group that is planar and has a bound iron
center.
Covalent catalysis is used by many enzymes to cleave peptide
bonds. Which of the following amino acids would not facilitate this
type of catalysis? (Think of the structure of the R-group of these
amino acids) Answer: Valine
The R-group on valine does not have an active group to participate
in covalent catalysis. The most commonly participating amino acids
are cysteine, serine and histidine.
© 2025 All rights reserved
