A) stop B) slow down C) speed up 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) thousands of different enzymes, each prompting a different reaction D) approximately 100 kinds of enzymes, each promoting a different chemical 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) participating in chemical reactions B) increasing the temperature C) changing the ionic concentration D) lowering the pH
A) increases the concentration of the enzyme B) alters the active site of the enzyme C) neutralizes the acids and bases in the system D) changes the pH of 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) temperature C) pH D) ionic conditions
A) -ose B) -ene C) -ase D) -ite
A) speed up chemical reactions B) are affected by temperature and pH C) all choices are correct D) are proteins
A) providing the substrate required for the reaction to occur B) absorbing water released when polymers are formed C) affecting the rate at which reactions occur D) combining with excess hydrogen to form gaseous wastes
A) temperature of the reaction B) speed of the reaction C) pH of the reaction D) products of the reaction
A) structure of the enzyme B) amount of activation C) function of the reactants D) pH of the environment energy required
A) ions B) sugars C) enzymes D) reactants
A) rate B) pH C) equilibrium D) direction
A) in a high-saline environment B) within a limited pH range C) under low pressure D) at low temperatures
A) chemical energy B) electrical 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) amylase can function only in the small intestine D) the optimum temperature for amylase is 37 degrees C
A) organic molecule B) substrate C) inactive site D) active site
A) activation energy B) catalyst C) active site D) inhibitor
A) enzymes can only bind to specific substrates B) different enzymes are made in specific areas of the cytoplasm C) most enzymes can catalyze many different reactions D) enzymes are sent to specific substrates by ribosomes
A) vacuole formation B) enzyme specificity C) . pinocytosis D) sharing of electrons
A) proteins B) nucleotides C) carbohydrates D) lipids
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) protease B) lipid C) manganese dioxide D) galactose
A) temperature of the environment of the reaction B) size of the substrate molecule C) number of enzyme molecules present D) pH of the environment of the reaction |