BBL LESSON 3: ENZYMES QUESTIONS
AND VERIFIED ANSWERS|100%
CORRECT|GRADE A+
Choose the correct statement:
A. Functions of protein catalysts include increasing interaction specificity and inhibiting the formation of
side products
B. Enzymes have the capacity for regulation allowing control of biological pathways
C. Enzymes increase the rate of a reaction without being used up in the reaction
D. All of the above - ANSWER D. All of the above
The site on the enzyme globular protein where the substrate binds and is converted to product is called
A. Binding cleft
B. Allosteric site
C. Active site
D. None of the above - ANSWER C. Active site
Which of the following is true regarding enzymes?
A. are needed in large amounts
B. catalyze exergonic and endergonic reactions
C. increase the energy of activation of the reaction
D. their effectiveness as catalysts is independent of temperature - ANSWER B. catalyze exergonic and
endergonic reactions
Is this statement about protein function True or False?
The energy diagram shows that the presence of a catalyst in a reaction causes a decrease in the energy
needed to form the product. - ANSWER True
What is the behavior of delta G in a catalyzed or uncatalyzed reaction?
, A. it remains the same
B. it decreases
C. it is lower in catalyzed reactions compared to uncatalyzed reactions
D. it increases - ANSWER A. it remains the same
During a catalyzed reaction, what energy is the lowest?
A. delta H of the formation
B. delta E of the activation
C. delta G of the free energy
D. none of the above - ANSWER B. delta E of the activation
Is this statement True or False?
The enzyme makes the formation of the transition state energetically possible. The formation of product
comes about by the enzyme overcoming the activation energy barrier. - ANSWER True
During an exergonic reaction
A. the energy of the product is always greater than the substrate
B. the energy of the product is always the same as the substrate
C. the energy of the product is always less than the substrate
D. it depends on the reaction - ANSWER C. the energy of the product is always less than the substrate
Is this statement about protein function True or False?
In biochemical reactions the energy of the exergonic reaction drives the endergonic reaction. - ANSWER
True
In the 'induced fit' model of the enzyme's active site
A. The substrate binds to the complementary shaped active site
AND VERIFIED ANSWERS|100%
CORRECT|GRADE A+
Choose the correct statement:
A. Functions of protein catalysts include increasing interaction specificity and inhibiting the formation of
side products
B. Enzymes have the capacity for regulation allowing control of biological pathways
C. Enzymes increase the rate of a reaction without being used up in the reaction
D. All of the above - ANSWER D. All of the above
The site on the enzyme globular protein where the substrate binds and is converted to product is called
A. Binding cleft
B. Allosteric site
C. Active site
D. None of the above - ANSWER C. Active site
Which of the following is true regarding enzymes?
A. are needed in large amounts
B. catalyze exergonic and endergonic reactions
C. increase the energy of activation of the reaction
D. their effectiveness as catalysts is independent of temperature - ANSWER B. catalyze exergonic and
endergonic reactions
Is this statement about protein function True or False?
The energy diagram shows that the presence of a catalyst in a reaction causes a decrease in the energy
needed to form the product. - ANSWER True
What is the behavior of delta G in a catalyzed or uncatalyzed reaction?
, A. it remains the same
B. it decreases
C. it is lower in catalyzed reactions compared to uncatalyzed reactions
D. it increases - ANSWER A. it remains the same
During a catalyzed reaction, what energy is the lowest?
A. delta H of the formation
B. delta E of the activation
C. delta G of the free energy
D. none of the above - ANSWER B. delta E of the activation
Is this statement True or False?
The enzyme makes the formation of the transition state energetically possible. The formation of product
comes about by the enzyme overcoming the activation energy barrier. - ANSWER True
During an exergonic reaction
A. the energy of the product is always greater than the substrate
B. the energy of the product is always the same as the substrate
C. the energy of the product is always less than the substrate
D. it depends on the reaction - ANSWER C. the energy of the product is always less than the substrate
Is this statement about protein function True or False?
In biochemical reactions the energy of the exergonic reaction drives the endergonic reaction. - ANSWER
True
In the 'induced fit' model of the enzyme's active site
A. The substrate binds to the complementary shaped active site
