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