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