ANSWERS Problem set for midterm 2

ANSWERS Problem set for midterm 2 - Key to Midterm 2 review...

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Key to Midterm 2 review problems Ia. Symport. Na+/K+ ATPase is an active transport pump, inhibited by oubain. b. passive transport. The cycle that leads to muscle contraction involves actin, myosin, and ATP hydrolysis. c. glycogen. All involved in catalytic mechanism of serine proteases d. F-actin. All proteins that are transmembrane, or functin in the MB. e. subtilisin. All membrane lipids (all found in membranes) f. trypsin. All membrane proteins. Or all use ATP for active transport. g. catalysis. All associated with membranes, phospholipids are amphipathic, as are membrane proteins. II. F, T, F, T or F, F, F, T, T, F, T, T, F, T, T, T, F III. 1. Ed would adjust the fatty acid composition of his membrane, synthesizing more unsaturated fatty acid chains to keep it more fluid. Kinked FA chains donÕt pack as well at lower temperatures. Ed could also synthesize more cholesterol. 2. activation energy would be decreased, rate increased. See figure 6-3 in text.
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