Enzymes How is the enzyme COX-1 important in human health? It is a chemical derivative of aspirin It helps to transport carbon dioxide in the blood It is critical for the biosynthesis of DNA It catalyzes the production of hormones that maintain the stomach lining It is a chemical derivative of aspirin It helps to transport carbon dioxide in the blood It is critical for the biosynthesis of DNA It catalyzes the production of hormones that maintain the stomach lining ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following statements about enzymes or their function is true? Enzymes are proteins whose three-dimensional form is key to their function Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy All of these Enzymes are proteins whose three-dimensional form is key to their function Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy All of these ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? All of these Both show specificity for certain amino acid sequences Both require water to complete the catalytic cycle Both use a base to activate the nucleophile All of these Both show specificity for certain amino acid sequences Both require water to complete the catalytic cycle Both use a base to activate the nucleophile ANSWER DOWNLOAD EXAMIANS APP
Enzymes The cleavage specificity of trypsin and chymotrypsin depend in part on the presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket absence of water in the active site proximity of Ser 195 to the active site or specificity pocket presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket absence of water in the active site proximity of Ser 195 to the active site or specificity pocket ANSWER DOWNLOAD EXAMIANS APP
Enzymes Enzyme-driven metabolic pathways can be made more efficient by concentrating enzymes within specific cellular compartments All of these fixing enzymes into membranes so that they are adjacent to each other grouping enzymes into free-floating, multienzyme complexes concentrating enzymes within specific cellular compartments All of these fixing enzymes into membranes so that they are adjacent to each other grouping enzymes into free-floating, multienzyme complexes ANSWER DOWNLOAD EXAMIANS APP
Enzymes The nucleophile in serine proteases is Asparagine water both (a) and (b) Serine Asparagine water both (a) and (b) Serine ANSWER DOWNLOAD EXAMIANS APP
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