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