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) not be reused B) break down more starch molecules C) alter equilibrium conditions D) change its shape to adapt to different reactant
A) increasing the temperature B) lowering the pH C) changing the ionic concentration D) participating in chemical reactions
A) neutralizes the acids and bases in the system B) increases the concentration of the enzyme 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) concentration of reactants C) temperature D) ionic conditions
A) -ene B) -ase C) -ite D) -ose
A) are affected by temperature and pH B) all choices are correct C) are proteins D) speed up chemical reactions
A) combining with excess hydrogen to form gaseous wastes B) absorbing water released when polymers are formed C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) products of the reaction B) pH of the reaction C) temperature of the reaction D) speed of the reaction
A) pH of the environment energy required B) function of the reactants C) structure of the enzyme D) amount of activation
A) ions B) enzymes C) sugars 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) mechanical energy B) electrical energy C) chemical energy D) activation energy
A) amylase can function only in the small intestine 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) the optimum temperature for amylase is 37 degrees C
A) active site B) substrate C) organic molecule D) inactive site
A) catalyst B) active site C) activation energy D) inhibitor
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions 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) sharing of electrons D) enzyme specificity
A) lipids B) carbohydrates C) nucleotides D) proteins
A) permanently blind to reactants, allowing a reaction to occur B) prevent reactions from occurring spontaneously C) require activation energy for a reaction to occur D) raise the activation energy until a reaction begins
A) manganese dioxide B) lipid C) galactose D) protease
A) size of the substrate molecule B) pH of the environment of the reaction C) number of enzyme molecules present D) temperature of the environment of the reaction |