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