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