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