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