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