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