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