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