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