Materials Question 15 1 pts How are enzymes typically inactivated in the human body? Choose any that apply. changing pH in cytoplasm to 7.4 changing temperature to 370C denaturation interaction with inhibitor interaction with zymogen
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Question 7 (1 point) Enzymes are important in living organisms because they: catalyze the covalent bonding of NAD molecules to substrates bind irreversibly to substrates remove them from the cellular pool increase local temperatures increase rates of reactions bring together reactants properly oriented for reaction increase the pH level inside the cell Question 8 (1 point) Which of the following does NOT belong? FADH2 hexokinase NADH FAD Coenzyme-A
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A reversible inhibitor is one that: denatures the enzyme binds temporarily to the enzyme activates the enzyme binds permanently to the enzyme Question 2 (10 points) The process of competitive inhibition can be overcome by: increasing the substrate concentration increasing the pH all of these decreasing the temperature
(15) Bacteria possess two sets of enzymes involved in peptidoglycan synthesis; the elongation enzymes and the crosswall enzymes. Explain how the relative rates of activity of these two systems can influence the cell shape. (You can google the two enzymes.) This of this in terms of which would be more active for rod shaped bacteria vs. cocci. If there is more elongation enzyme activity than crosswall enzyme activity, the cells will be short when they divide and round and have a coccus shape. If there is more elongation enzyme activity than crosswall enzyme activity, the cells will grow longer before dividing and have a rod-shaped bacillus shape. If there is more crosswall enzyme activity than elongation enzyme activity, the cells will grow longer before dividing and have a rod-shaped bacillus shape.
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