A) stop B) slow down C) go in different directions D) speed up
A) approximately 100 kinds of enzymes, each promoting a different chemical reaction B) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration C) one kind of enzymes that promotes thousands of different chemical reactions D) thousands of different enzymes, each prompting a different reaction
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) lowering the pH D) increasing the temperature
A) increases the concentration of the enzyme B) changes the pH of the system C) alters the active site of the enzyme D) neutralizes the acids and bases in the system
A) enzymes are quickly used up B) most cellular reactions require a specific, unique enzyme C) they have to have some way to use up the protein that they consume D) they have to have some way to use up the protein that they consume
A) temperature B) ionic conditions C) concentration of reactants D) pH
A) -ene B) -ose C) -ite D) -ase
A) all choices are correct B) are affected by temperature and pH C) speed up chemical reactions D) are proteins
A) combining with excess hydrogen to form gaseous wastes B) affecting the rate at which reactions occur 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) temperature of the reaction D) pH of the reaction
A) function of the reactants B) amount of activation C) pH of the environment energy required D) structure of the enzyme
A) sugars B) enzymes C) ions D) reactants
A) equilibrium B) rate C) direction D) pH
A) within a limited pH range B) under low pressure C) at low temperatures D) in a high-saline environment
A) mechanical energy B) electrical energy C) activation energy D) chemical energy
A) amylase can function only in the small intestine B) amylase is denatured at temperature below 37 degrees C 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) substrate B) inactive site C) active site D) organic molecule
A) activation energy B) inhibitor C) catalyst D) active site
A) most enzymes can catalyze many different reactions B) enzymes are sent to specific substrates by ribosomes C) different enzymes are made in specific areas of the cytoplasm D) enzymes can only bind to specific substrates
A) vacuole formation B) . pinocytosis C) enzyme specificity D) sharing of electrons
A) proteins B) carbohydrates C) nucleotides 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) galactose B) protease C) lipid D) manganese dioxide
A) size of the substrate molecule B) temperature of the environment of the reaction C) number of enzyme molecules present D) pH of the environment of the reaction |