An Extremely Efficient Enzyme Called "Efficase" Catalyzes the Conversion of "A

question 47

Multiple Choice

An extremely efficient enzyme called "efficase" catalyzes the conversion of "A" to "B." A researcher decides to mutate the enzyme in order to try to improve its performance.Following active site mutations,a significant reduction in the value of K_M and V_max was observed.Which of the following may have occurred?

• A)The affinity of the enzyme for the substrate was increased to a point which did not favor propagation (continuation)of the reaction.
• B)The decrease in V_max was not related to the decrease in K_M.
• C)If the reaction was first-order,the change in K_M cannot have affected V_max.
• D)The stability of E+S (E+A as written above)was increased,thereby increasing the K_M.
• E)The reverse reaction (breakdown of EA to E+A)was favored,slowing the V_max.

Recognize the importance of nutritional requirements during specific life stages including pregnancy and puberty.

Identify the nutritional needs and appropriate weight gain during pregnancy.

Acknowledge the importance of certain vitamins and minerals in preventing pregnancy-related conditions and supporting fetal development.

Understand conditions associated with specific nutritional deficiencies or behaviors during pregnancy.

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