03:56√ The Definition of Activation Energy of Enzymes Explained. Watch this video to find out!iitutor.com950views1rank
Multiple ChoiceWhich of the following statements is TRUE regarding an enzyme's function?a) It is generally increased if the structure or conformation of an enzyme is altered.b) It is independent of factors such as pH and temperature.c) It increases the rate of chemical reactions by lowering activation energy barriers.2614views20rank
Multiple ChoiceA plot of reaction rate (velocity) against temperature for an enzyme indicates little activity at 10°C and 45°C, with peak activity at 35°C. The most reasonable explanation for the low velocity at 10°C is that __________. 706views
Textbook QuestionWhat would happen if activation energy barriers didn't exist? a. Substrates would not bind properly to enzymes; b. Chemical reactions in the body would never occur; c. Enzyme function would not be affected; d, Metabolic reactions would proceed even if their products were not needed.969views
Textbook QuestionWhy is the barrier of the activation energy beneficial for cells? Explain how enzymes lower activation energy.698views
Textbook QuestionA biologist performed two series of experiments on lactase, the enzyme that hydrolyzes lactose to glucose and galactose. First, she made up 10% lactose solutions containing different concentrations of enzyme and measured the rate at which galactose was produced (grams of galactose per minute). Results of these experiments are shown in Table A below. In the second series of experiments (Table B), she prepared 2% enzyme solutions containing different concentrations of lactose and again measured the rate of galactose production. (b) Graph and explain the relationship between the reaction rate and the substrate concentration. How and why did the results of the two experiments differ?.986views
Textbook QuestionA biologist performed two series of experiments on lactase, the enzyme that hydrolyzes lactose to glucose and galactose. First, she made up 10% lactose solutions containing different concentrations of enzyme and measured the rate at which galactose was produced (grams of galactose per minute). Results of these experiments are shown in Table A below. In the second series of experiments (Table B), she prepared 2% enzyme solutions containing different concentrations of lactose and again measured the rate of galactose production. (a)Graph and explain the relationship between the reaction rate and the enzyme concentration.593views
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