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