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