Topics: Enzyme, Chemical reaction, PH Pages: 1 (657 words) Published: November 2, 2014
Virtual Lab Enzyme Controlled Reactions Worksheet Which of the following does NOT apply to an enzyme Catalyst Inorganic Protein All of the above apply to an enzyme When an enzyme catalyzes a reaction Substrate(s) bind in the active site Products bind in the active site The shape of the enzyme remains unchanged The enzyme is consumed by the reaction Which of the following would interfere most with the ability of an enzyme to catalyze a reaction Reduced concentration of substrate available Reduced concentration of product available Increased concentration of substrate available A change in the pH Feedback mechanisms regulate the rate of enzyme activity, effectively turning off an enzyme in a reversible way until more product is needed. Which of the following would be most effective as a feedback mechanism Reduced concentration of product Increased concentration of substrate A change in pH Temporary binding of a non-substrate molecule in the active site Which of the following statements is accurate in describing the activity of the lactase enzyme Lactase can function equally effectively at many different pH levels The shape of lactase does not change during the reaction Lactase is converted to glucose and galactose by the reaction One lactase enzyme can catalyze many reactions Look up and write in the following definitions as they apply to chemical reactions Catabolic a chemical reaction during which a larger molecule is being broken down into simpler forms while releasing energy Anabolic a chemical reaction during which simpler molecules are being put together into larger molecules with an energy cost Endergonic a chemical reaction during which a system absorbs energy from its surroundings, effectively some kind of work is being done upon a system. Exergonic a chemical reaction during which energy is being released from a system to its surroundings. Is the action of the enzyme illustrated in the video catabolic b. exergonic Endergonic or exergonic Is the action...
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