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