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Questions and Answers
What type of reactions are involved in catabolism?
What type of reactions are involved in catabolism?
- Redox reactions
- Dehydration synthesis reactions
- Endergonic reactions
- Hydrolytic reactions (correct)
Which of the following describes the energy characteristics of catabolic reactions?
Which of the following describes the energy characteristics of catabolic reactions?
- They produce energy without the use of water.
- They consume more energy than they produce.
- They are always active at ambient temperature.
- They produce more energy than they consume. (correct)
What role do enzymes play in metabolic reactions?
What role do enzymes play in metabolic reactions?
- They substitute for reactants in metabolic pathways.
- They do not influence the rate of reactions.
- They help lower the activation energy required. (correct)
- They increase the activation energy needed for reactions.
Which process is primarily associated with anabolic reactions?
Which process is primarily associated with anabolic reactions?
What is the primary reason that metabolic reactions typically require enzymes?
What is the primary reason that metabolic reactions typically require enzymes?
What is the term for the complete, catalytically active enzyme along with its bound coenzyme or metal ion?
What is the term for the complete, catalytically active enzyme along with its bound coenzyme or metal ion?
Which of the following statements about enzymes is true?
Which of the following statements about enzymes is true?
What type of reactions do anabolic enzymes catalyse?
What type of reactions do anabolic enzymes catalyse?
Which characteristic of catalysts is described as recoverable, allowing only small amounts to be used in reactions?
Which characteristic of catalysts is described as recoverable, allowing only small amounts to be used in reactions?
What characterizes endergonic reactions?
What characterizes endergonic reactions?
What drives anabolic reactions according to the provided content?
What drives anabolic reactions according to the provided content?
How do enzymes affect the activation energy of a reaction?
How do enzymes affect the activation energy of a reaction?
Which of the following describes a feature of enzymes in biochemical reactions?
Which of the following describes a feature of enzymes in biochemical reactions?
What is the primary purpose of enzymes in metabolic reactions?
What is the primary purpose of enzymes in metabolic reactions?
Which model suggests that an enzyme's active site changes shape to fit the substrate?
Which model suggests that an enzyme's active site changes shape to fit the substrate?
Which type of metabolic reaction is characterized by the consumption of more energy than it produces?
Which type of metabolic reaction is characterized by the consumption of more energy than it produces?
What is the role of a catalyst in a biochemical reaction?
What is the role of a catalyst in a biochemical reaction?
What governs the binding specificity of enzymes to their substrates?
What governs the binding specificity of enzymes to their substrates?
What happens to the equilibrium of a reaction when an enzyme is present?
What happens to the equilibrium of a reaction when an enzyme is present?
In the 'Lock and Key' model of enzyme action, what is emphasized?
In the 'Lock and Key' model of enzyme action, what is emphasized?
What is formed when an enzyme binds to its substrate?
What is formed when an enzyme binds to its substrate?
What is the main class of the enzyme with the commission number 2.7.1.1?
What is the main class of the enzyme with the commission number 2.7.1.1?
Which of the following statements accurately describes the function of cofactors?
Which of the following statements accurately describes the function of cofactors?
What distinguishes coenzymes from prosthetic groups?
What distinguishes coenzymes from prosthetic groups?
Which metal ion is commonly known as a cofactor for enzymatic reactions?
Which metal ion is commonly known as a cofactor for enzymatic reactions?
How does the 'active site' of an enzyme influence its function?
How does the 'active site' of an enzyme influence its function?
What type of cofactor is NAD (Nicotinamide adenine dinucleotide)?
What type of cofactor is NAD (Nicotinamide adenine dinucleotide)?
What is the role of magnesium ions (Mg^2+) in enzymatic reactions?
What is the role of magnesium ions (Mg^2+) in enzymatic reactions?
Which of the following statements about vitamins as cofactors is correct?
Which of the following statements about vitamins as cofactors is correct?
What does a lower K_M value indicate about an enzyme's affinity for its substrate?
What does a lower K_M value indicate about an enzyme's affinity for its substrate?
In a non-competitive inhibition scenario, how does the V_max value change?
In a non-competitive inhibition scenario, how does the V_max value change?
What is the effect of uncompetitive inhibition on K_M?
What is the effect of uncompetitive inhibition on K_M?
How does the K_M value change in competitive inhibition?
How does the K_M value change in competitive inhibition?
What type of complex is formed during uncompetitive inhibition?
What type of complex is formed during uncompetitive inhibition?
In competitive inhibition, how is the substrate binding affected?
In competitive inhibition, how is the substrate binding affected?
Which inhibitor type stabilizes the enzyme-substrate complex?
Which inhibitor type stabilizes the enzyme-substrate complex?
What does a low K_i value imply about an inhibitor?
What does a low K_i value imply about an inhibitor?
What is the role of K_M in enzyme catalysis?
What is the role of K_M in enzyme catalysis?
Which enzyme is targeted by the drug Lisinopril?
Which enzyme is targeted by the drug Lisinopril?
In which type of inhibition is V_max decreased but K_M unchanged?
In which type of inhibition is V_max decreased but K_M unchanged?
What indicates effective inhibitor drugs for a given enzyme reaction?
What indicates effective inhibitor drugs for a given enzyme reaction?
Which statement is true regarding the effect of different inhibitors on V_max?
Which statement is true regarding the effect of different inhibitors on V_max?
What does [Vmax]{.math.inline} represent in a reaction?
What does [Vmax]{.math.inline} represent in a reaction?
How is the Michaelis constant [KM]{.math.inline} defined?
How is the Michaelis constant [KM]{.math.inline} defined?
What type of plot is the Lineweaver-Burk Plot derived from?
What type of plot is the Lineweaver-Burk Plot derived from?
In an Eadie-Hofstee Plot, what does the y-intercept represent?
In an Eadie-Hofstee Plot, what does the y-intercept represent?
What mathematical transformation is used in the Eadie-Hofstee Plot?
What mathematical transformation is used in the Eadie-Hofstee Plot?
Which of the following statements about [KM]{.math.inline} is true?
Which of the following statements about [KM]{.math.inline} is true?
What characteristic does the Michaelis-Menten curve display in its graphical representation?
What characteristic does the Michaelis-Menten curve display in its graphical representation?
What is the significance of the intercept in a Lineweaver-Burk Plot?
What is the significance of the intercept in a Lineweaver-Burk Plot?
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