A) speed up B) slow down C) go in different directions D) stop
A) one kind of enzymes that promotes thousands of different chemical reactions B) thousands of different enzymes, each prompting a different reaction C) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) not be reused B) alter equilibrium conditions C) break down more starch molecules D) change its shape to adapt to different reactant
A) changing the ionic concentration B) participating in chemical reactions C) lowering the pH D) increasing the temperature
A) changes the pH of the system B) alters the active site of the enzyme C) increases the concentration of the enzyme D) neutralizes the acids and bases in the system
A) most cellular reactions require a specific, unique enzyme B) they have to have some way to use up the protein that they consume C) they have to have some way to use up the protein that they consume D) enzymes are quickly used up
A) temperature B) pH C) concentration of reactants D) ionic conditions
A) -ene B) -ite C) -ase D) -ose
A) are proteins B) are affected by temperature and pH C) all choices are correct D) speed up chemical reactions
A) providing the substrate required for the reaction to occur B) affecting the rate at which reactions occur C) absorbing water released when polymers are formed D) combining with excess hydrogen to form gaseous wastes
A) speed of the reaction B) products of the reaction C) pH of the reaction D) temperature of the reaction
A) structure of the enzyme B) pH of the environment energy required C) amount of activation D) function of the reactants
A) enzymes B) ions C) reactants D) sugars
A) direction B) rate C) pH D) equilibrium
A) in a high-saline environment B) within a limited pH range C) under low pressure D) at low temperatures
A) electrical energy B) activation energy C) chemical energy D) mechanical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 37 degrees C C) amylase can function only in the small intestine D) the lock-and-key model of enzyme action does not apply to amylase
A) active site B) substrate C) inactive site D) organic molecule
A) active site B) catalyst C) inhibitor D) activation energy
A) enzymes are sent to specific substrates by ribosomes B) different enzymes are made in specific areas of the cytoplasm C) enzymes can only bind to specific substrates D) most enzymes can catalyze many different reactions
A) vacuole formation B) . pinocytosis C) sharing of electrons D) enzyme specificity
A) carbohydrates B) lipids C) proteins D) nucleotides
A) raise the activation energy until a reaction begins B) require activation energy for a reaction to occur C) permanently blind to reactants, allowing a reaction to occur D) prevent reactions from occurring spontaneously
A) galactose B) lipid C) manganese dioxide D) protease
A) pH of the environment of the reaction B) size of the substrate molecule C) temperature of the environment of the reaction D) number of enzyme molecules present |