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