A) go in different directions B) speed up C) slow down D) stop
A) thousands of different enzymes, each prompting a different reaction B) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration C) one kind of enzymes that promotes thousands of different chemical reactions D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) not be reused B) alter equilibrium conditions C) change its shape to adapt to different reactant D) break down more starch molecules
A) lowering the pH B) increasing the temperature C) participating in chemical reactions D) changing the ionic concentration
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) enzymes are quickly used up C) they have to have some way to use up the protein that they consume D) most cellular reactions require a specific, unique enzyme
A) temperature B) pH C) ionic conditions D) concentration of reactants
A) -ene B) -ose C) -ite D) -ase
A) are affected by temperature and pH B) speed up chemical reactions C) all choices are correct D) are proteins
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) speed of the reaction B) products of the reaction C) temperature of the reaction D) pH of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) sugars B) reactants C) ions D) enzymes
A) direction B) equilibrium C) pH D) rate
A) within a limited pH range B) under low pressure C) in a high-saline environment D) at low temperatures
A) chemical energy B) activation energy C) mechanical energy D) electrical 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) substrate C) active site D) organic molecule
A) active site B) activation energy C) inhibitor D) catalyst
A) different enzymes are made in specific areas of the cytoplasm B) enzymes are sent to specific substrates by ribosomes C) enzymes can only bind to specific substrates D) most enzymes can catalyze many different reactions
A) . pinocytosis B) vacuole formation C) sharing of electrons D) enzyme specificity
A) proteins B) lipids C) nucleotides D) carbohydrates
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) protease B) manganese dioxide C) galactose D) lipid
A) size of the substrate molecule B) pH of the environment of the reaction C) number of enzyme molecules present D) temperature of the environment of the reaction |