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