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