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