Which of the following are characteristics of enzymes? Check All That Apply Enzymes extract energy from the substrate and transfer it to the products. Enzymes are not altered during a chemical reaction. Enzymes are specific to a chemical reaction. Enzyme function is dependent on the shape of the active site. Enzymes are part of the final product of a chemical reaction.

Which of the following are characteristics of enzymes? Check All That Apply Enzymes extract energy from the substrate and transfer it to the products. Enzymes are not altered during a chemical reaction. Enzymes are specific to a chemical reaction. Enzyme function is dependent on the shape of the active site. Enzymes are part of the final product of a chemical reaction.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter3: Cells And How They Work

Section: Chapter Questions

Problem 7SQ: Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise...

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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)
______ are always changed by participating in a reaction. a. Enzymes b. Cofactors c. Reactants d. Coenzymes
______ are always changed by participating in a reaction. a. Enzymes b. Cofactors c. Reactants d. Coenzymes
1) Which of these is NOT a correct statement about enzymes? Group of answer choices Enzyme activity may require a non-protein component (cofactor). Enzymes catalyze chemical reactions and are reusable. Enzymes increase the activation energy (Eact) of reactions. Enzyme activity is affected by the environment (e.g., temperature and pH).
Which of the following statements is not true about enzymes?* A. Enzymes are biological catalysts B. Enzymes as catalysts lowers the activation energy thus, speeds up the rate of reaction C. Enzymes are proteins D. Enzymes are highly specific E. None of the given options
Which of the following is NOT true about enzymes? Enzyme inhibitors interact reversibly or irreversibly with an enzyme to alter its Km and /or Vmax values. Enzymes typically act under milder conditions of temperature and pH than non-enzyme chemical catalysts. Zymogens are the inactive precursors of enzyme. Nucleophilic groups can catalyze reactions through the transient formation of covalent bonds with the substrate. Transition state stabilization can significantly increase the activation energy for a reaction.
All of the following are accurate about enzymes except: A. Enzymes are typically globular proteins with an active site B. Enzymes decrease activation energy C. Enzymes can be used over and over to catalyze a substrate to a product D. Enzymes are versatile and can catalyze different types of chemical reactions
Which of the following do enzymes change?∆G ; reaction rate; types of product generated; activation energy; the laws ofthermodynamics.
Coenzymes function to: change the shape of enzymes, allowing different additional substrates to bind. denature the enzyme, stopping the chemical reaction from occurring. interact directly with enzymes, either enabling the reaction to occur or making the substrate-enzyme interaction more efficient. dilate blood vessels, allowing more blood to flow, allowing more substrate to reach enzymes. absorb excess hydrogen and hydroxide ions, keeping the pH relatively stable, so that reactions can occur most efficiently.
As the amount of substrate is increased in an enzyme-substrate reaction, which of the following will happen? the reaction is inhibited the amount of product increases. enzymes become denatured faster. enzymes work faster. the amount of enzyme also increases proportionally.
write a 5 sentence min. paragraph on enzymes. Explain what type of molecule they are, what their role is, a real life example, and what causes them to fail in the human body.
Indicate whether each of the following statements about an enzyme active site is true or false. It is the location where substrate molecules are produced. It always has a fixed, rigid geometry. It always has a geometrical shape exactly complementary to that of substrate. It always accommodates several structurally related substrates. It is the location where substrate molecules are converted to product molecules. It always has a shape that has a degree of flexibility to it. It always accommodates only one specific substrate.