EX2sp07a - Exam 2 Spring 07 1 Changes in the configuration...

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Exam 2 - Spring 07 1. Changes in the configuration around which of the following carbons is responsible for the mutorotation exhibited by glucose in solution? *a. C-1 b. C-2 c. C-4 d. C-5 e. C-6 2. Membranes are likely to be most fluid if they are richest in phospholipids which contain the following fatty acid esters? a. stearoyl b. palmitoyl c. oleoyl *d. linolenoyl e. linoleioyl 3. Which of the following are anomers of one another: 4. Which of the following is a major difference between hemoglobin and aspartate transcarbamylase. *a. hemoglobin is not an enzyme b. only hemoglobin can occur in T and R states c. only hemoglobin exhibits cooperativity d. only hemoglobin has quaternary structure 5. The following represents a hypothetical metabolic pathway, where the letters represent substrates and the numbers represent enzyme which catalyzes the reaction beneath it: 1 2 3 4 5 6 A → B → C → D → E → F → G In terms of metabolic regulation, which effect makes the most sense? a. B is an inhibitor of 1 *b. G is an inhibitor of 1 c. D is an inhibitor of 3 d. G is an inhibitor of 6 e. E is an inhibitor of 3 6. In an enzyme catalyzed reaction, which of the following is NOT TRUE with respect to initial velocity? *a. It is the first point on the energy of activition curve b. It is measured for most enzymes before significant accumulation of product c. it occurs when dP/dt is a maximum d. initial velocity never reaches Vmax e. Initial velocity is slowed or eliminated by a covalent inhibitor
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