A) stop B) go in different directions C) slow down D) speed up
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) approximately 100 kinds of enzymes, each promoting a different chemical reaction D) thousands of different enzymes, each prompting a different reaction
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) lowering the pH C) participating in chemical reactions D) increasing the temperature
A) alters the active site of the enzyme B) increases the concentration of the enzyme C) changes the pH of the system D) neutralizes the acids and bases in the system
A) they have to have some way to use up the protein that they consume 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) enzymes are quickly used up
A) concentration of reactants B) temperature C) pH D) ionic conditions
A) -ose B) -ite C) -ase D) -ene
A) all choices are correct B) are proteins C) speed up chemical reactions D) are affected by temperature and pH
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) temperature of the reaction B) products of the reaction C) pH of the reaction D) speed 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) ions B) sugars C) enzymes D) reactants
A) rate B) equilibrium C) pH D) direction
A) in a high-saline environment B) under low pressure C) within a limited pH range D) at low temperatures
A) chemical energy B) activation energy C) electrical energy D) mechanical energy
A) the optimum temperature for amylase is 37 degrees C B) amylase can function only in the small intestine C) amylase is denatured at temperature below 37 degrees C D) the lock-and-key model of enzyme action does not apply to amylase
A) inactive site B) organic molecule C) active site D) substrate
A) catalyst B) activation energy C) inhibitor D) active site
A) enzymes are sent to specific substrates by ribosomes B) different enzymes are made in specific areas of the cytoplasm C) enzymes can only bind to specific substrates D) most enzymes can catalyze many different reactions
A) enzyme specificity B) vacuole formation C) . pinocytosis D) sharing of electrons
A) carbohydrates B) nucleotides C) lipids 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) manganese dioxide B) protease C) galactose D) lipid
A) number of enzyme molecules present B) size of the substrate molecule C) pH of the environment of the reaction D) temperature of the environment of the reaction |