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