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