A) go in different directions B) speed up C) slow down D) stop
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) break down more starch molecules B) alter equilibrium conditions C) change its shape to adapt to different reactant D) not be reused
A) changing the ionic concentration B) participating in chemical reactions C) lowering the pH D) increasing the temperature
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) 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) pH C) temperature D) ionic conditions
A) -ene B) -ose C) -ite D) -ase
A) are affected by temperature and pH B) all choices are correct C) speed up chemical reactions D) are proteins
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) temperature of the reaction B) products of the reaction C) speed of the reaction D) pH of the reaction
A) amount of activation B) structure of the enzyme C) pH of the environment energy required D) function of the reactants
A) sugars B) enzymes C) ions D) reactants
A) equilibrium B) rate C) pH D) direction
A) at low temperatures B) under low pressure C) in a high-saline environment D) within a limited pH range
A) electrical energy B) activation energy C) mechanical 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) organic molecule D) substrate
A) catalyst B) inhibitor C) active site D) activation energy
A) most enzymes can catalyze many different reactions B) enzymes can only bind to specific substrates C) enzymes are sent to specific substrates by ribosomes D) different enzymes are made in specific areas of the cytoplasm
A) sharing of electrons B) enzyme specificity C) . pinocytosis D) vacuole formation
A) proteins B) lipids C) carbohydrates D) nucleotides
A) permanently blind to reactants, allowing a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) require activation energy for a reaction to occur
A) lipid B) galactose C) protease D) manganese dioxide
A) size of the substrate molecule B) temperature of the environment of the reaction C) pH of the environment of the reaction D) number of enzyme molecules present |