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