The binding of an allosteric inhibitor to an enzyme causes of product formation

Question

The binding of an allosteric inhibitor to an enzyme causes of product formation by the enzyme to degrease. Which of the following best explains why this decrease occurs? The allosteric inhibit binds to the active site, preventing the substrate from binding. The allosteric inhibitor causes free energy change of the reaction to increase. The allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site. The allosteric inhibitor lowers the temperature of the active site. The allosteric inhibitor binds to the substrate and prevents it from binding at the active site. The solutions in the arms of U-tube are separated at the bottom of he a selectively permeable membarane. The membrane is permeable to sodium chloride but not to glucose. Side A is filling with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled in with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same. If you examine Side A after 3 days, you should find a decrease in the concentration of NaCl and glucose and an increase in the water level. a decrease in the concentration of NaCI, an increase in water level, and no change in the concentration of no net change in the system a decrease in the concentration of NaCl and a decrease in the water level. no change in the concentration of NaCl and glucose and an increase in the water level. A primary objective of cell fractionation is to view the structure of cell membranes view the structure of organelles. determine the size of various organelles. separate the major organelles so their particular functions can be determined. crack the cell wall so the cytoplasmic can be released. The movement of a substance across a biological membrane against its concentration gradient with help energy input is diffusion active transport. osmosis facilitated diffusion. exocytosis The mathematical expression for the change in free energy of a system is: delta G = delta H = T delta S. Which of the following is (are) incorrect? Delta S is the change in entropy, a measure of randomness or disorder. Delta H is the change in enthalpy, the energy available to do work. Delta G is the change in free energy. T is the absolute temperature. both A and B

Explanation / Answer

ANSWER:

1) The allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site.

2) A decrease in the concentration of Nacl,an increase in water level, and no change in concentration of glucose

3) separate the major organelles so that their particular functions can be determined.

4) active transport

5)  G is the change in free energy

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