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