Which of the following is not a mechanism of enzyme regulation? Activation by proteolysis Multiple forms of enzymes Transfigural control
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- Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise series of chemical reactions b. are speeded up by enzymes c. may break down or assemble molecules d. always produce energy (such as ATP)Enzymes have all the following characteristics except: a. they act as biological catalysts b. they are proteins c. they carry out random chemical reactions d. they convert substrates into products e. they can cause genetic diseaseExposure to radiation can ________________ an enzyme and change its shape to the point where it becomes inactive.a. catalyzeb. decomposec. synthesized. denature
- All of the following are characteristics of the active site of an enzyme EXCEPT? Select the correct response. It has a complementary shape to its substrate. It is the binding site for many different kinds of molecules. It is found somewhere in the interior of the enzyme. It has less water content compared to the cytoplasm.Which of the following regulatory methods could never increase enzyme activity? phosphate removal by a phosphatase phosphate addition by a kinase allosteric regulation negative feedback positive feedbackThe region of an enzyme to which a substrate binds is called the ______ site. active substrate enzymatic conformational
- fill in the blank An enzymatic protein in its active state with all its cofactors is called a ( ) while an enzyme missing a cofactor to make it active is called an ( ).What is happening during the step that includes the enzyme-substrate complexAll of the following are characteristics of the active site of an enzyme EXCEPT? It has less water content compared to the cytoplasm. It is found somewhere in the interior of the enzyme. It is the binding site for many different kinds of molecules. It has a complementary shape to its substrate.
- All of the following are ways of controlling enzyme mechanism, except A. Edman degradation B. zymogens C. phosphorylation D. allostericThe concept that an enzyme will turn on when its active site joins in a "perfect fit" with a substrate's active site is called... The Puzzle Mechanism The Perfect Fit Mechanism The Snug as a Bug in a Rug Mechanism The Lock and Key MechanismWhich of the following affects the rate of enzyme driven reaction? rate constant air pressure concentration of enzyme concentration of substrate light intensity pH temperature