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