A) speed up B) stop 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) alter equilibrium conditions C) not be reused D) break down more starch molecules
A) lowering the pH B) increasing the temperature C) changing the ionic concentration D) participating in chemical reactions
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) 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) temperature B) ionic conditions C) pH D) concentration of reactants
A) -ase B) -ite C) -ose D) -ene
A) are proteins B) are affected by temperature and pH C) all choices are correct D) speed up chemical reactions
A) combining with excess hydrogen to form gaseous wastes B) absorbing water released when polymers are formed C) providing the substrate required for the reaction to occur D) affecting the rate at which reactions occur
A) speed of the reaction B) pH of the reaction C) temperature of the reaction D) products of the reaction
A) amount of activation B) structure of the enzyme C) pH of the environment energy required D) function of the reactants
A) sugars B) reactants C) enzymes D) ions
A) pH B) direction C) equilibrium D) rate
A) under low pressure B) within a limited pH range C) in a high-saline environment D) at low temperatures
A) chemical energy B) electrical energy C) activation energy D) mechanical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 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) organic molecule B) substrate C) inactive site D) active site
A) inhibitor B) catalyst C) activation energy D) active site
A) most enzymes can catalyze many different reactions B) enzymes can only bind to specific substrates C) enzymes are sent to specific substrates by ribosomes D) different enzymes are made in specific areas of the cytoplasm
A) sharing of electrons B) vacuole formation C) enzyme specificity D) . pinocytosis
A) carbohydrates B) lipids C) proteins D) nucleotides
A) require activation energy for a reaction to occur B) permanently blind to reactants, allowing a reaction to occur C) raise the activation energy until a reaction begins D) prevent reactions from occurring spontaneously
A) protease B) galactose C) manganese dioxide D) lipid
A) pH of the environment of the reaction B) size of the substrate molecule C) temperature of the environment of the reaction D) number of enzyme molecules present |