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