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Questions and Answers
What is the first amino acid incorporated into any new protein?
What is the first amino acid incorporated into any new protein?
- Methionine (correct)
- Glycine
- Leucine
- Lysine
In which direction are amino acid residues listed when describing a chain of amino acids?
In which direction are amino acid residues listed when describing a chain of amino acids?
- Side chain to backbone
- Random order
- C-terminus to N-terminus
- N-terminus to C-terminus (correct)
What feature defines an oligopeptide?
What feature defines an oligopeptide?
- More than 100 amino acids
- Less than 10 amino acids
- 12-20 amino acids (correct)
- Exactly 50 amino acids
What is the spatial arrangement of atoms that can result from movement without breaking bonds called?
What is the spatial arrangement of atoms that can result from movement without breaking bonds called?
Which type of proteins have a spherical shape with as little surface area per volume as possible?
Which type of proteins have a spherical shape with as little surface area per volume as possible?
What feature makes globular proteins highly soluble in water?
What feature makes globular proteins highly soluble in water?
What symptom might occur if a vessel carrying sickled cells is blocked in the lungs?
What symptom might occur if a vessel carrying sickled cells is blocked in the lungs?
Why are carriers of sickle cell disease more resistant to malaria?
Why are carriers of sickle cell disease more resistant to malaria?
Which type of bond is NOT a weak non-covalent interaction that helps in protein folding?
Which type of bond is NOT a weak non-covalent interaction that helps in protein folding?
What can disrupt the interactions that keep proteins folded and cause them to denature?
What can disrupt the interactions that keep proteins folded and cause them to denature?
What can protein misfolding lead to?
What can protein misfolding lead to?
What are prions composed entirely of?
What are prions composed entirely of?
What is the rate expression for a first order reaction?
What is the rate expression for a first order reaction?
Which type of reaction has a rate expression involving the square of the reactant concentration?
Which type of reaction has a rate expression involving the square of the reactant concentration?
What does the gradient of [P] vs. Time represent in an enzyme-catalyzed reaction?
What does the gradient of [P] vs. Time represent in an enzyme-catalyzed reaction?
Why is initial velocity often used in the study of enzyme kinetics?
Why is initial velocity often used in the study of enzyme kinetics?
How does the velocity of an enzyme-catalyzed reaction change with increasing [substrate]?
How does the velocity of an enzyme-catalyzed reaction change with increasing [substrate]?
At high substrate concentrations, what determines the limit on the velocity of an enzyme-catalyzed reaction?
At high substrate concentrations, what determines the limit on the velocity of an enzyme-catalyzed reaction?
How do changes in pH affect enzyme activity at the active site?
How do changes in pH affect enzyme activity at the active site?
What happens to enzyme activity above an optimal temperature?
What happens to enzyme activity above an optimal temperature?
In enzyme kinetics, what is the significance of determining the order of reaction?
In enzyme kinetics, what is the significance of determining the order of reaction?
How does an increase in thermal energy affect enzyme-catalyzed reactions?
How does an increase in thermal energy affect enzyme-catalyzed reactions?
What effect does heat have on enzymes when above an optimal temperature?
What effect does heat have on enzymes when above an optimal temperature?
How is the rate of reaction in enzyme kinetics expressed?
How is the rate of reaction in enzyme kinetics expressed?
What is the theoretical value of Vmax in Michaelis-Menten kinetics?
What is the theoretical value of Vmax in Michaelis-Menten kinetics?
Which characteristic makes Michaelis-Menten plots difficult for determining Vmax and Km?
Which characteristic makes Michaelis-Menten plots difficult for determining Vmax and Km?
What does the Michaelis constant Km measure?
What does the Michaelis constant Km measure?
What does the turnover number Kcat represent in Michaelis-Menten kinetics?
What does the turnover number Kcat represent in Michaelis-Menten kinetics?
In Michaelis-Menten kinetics, what does a small Km indicate about an enzyme's affinity for its substrate?
In Michaelis-Menten kinetics, what does a small Km indicate about an enzyme's affinity for its substrate?
Why does the large substrate concentration requirement pose a disadvantage in Michaelis-Menten kinetics?
Why does the large substrate concentration requirement pose a disadvantage in Michaelis-Menten kinetics?
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