A) speed up B) go in different directions C) slow down D) stop
A) thousands of different enzymes, each prompting a different reaction B) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration C) approximately 100 kinds of enzymes, each promoting a different chemical reaction 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) participating in chemical reactions B) increasing the temperature C) changing the ionic concentration 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) they have to have some way to use up the protein that they consume C) enzymes are quickly used up D) most cellular reactions require a specific, unique enzyme
A) ionic conditions B) temperature C) pH D) concentration of reactants
A) -ene B) -ase C) -ose D) -ite
A) are affected by temperature and pH B) all choices are correct C) are proteins D) speed up chemical reactions
A) providing the substrate required for the reaction to occur B) combining with excess hydrogen to form gaseous wastes C) affecting the rate at which reactions occur D) absorbing water released when polymers are formed
A) speed of the reaction B) pH of the reaction C) products of the reaction D) temperature of the reaction
A) structure of the enzyme B) function of the reactants C) amount of activation D) pH of the environment energy required
A) ions B) sugars C) enzymes D) reactants
A) pH B) equilibrium C) rate D) direction
A) within a limited pH range B) in a high-saline environment C) under low pressure D) at low temperatures
A) electrical energy B) activation energy C) chemical energy D) mechanical 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) inactive site C) organic molecule D) substrate
A) activation energy B) active site C) catalyst D) inhibitor
A) enzymes can only bind to specific substrates B) most enzymes can catalyze many different reactions C) different enzymes are made in specific areas of the cytoplasm D) enzymes are sent to specific substrates by ribosomes
A) vacuole formation B) enzyme specificity C) . pinocytosis D) sharing of electrons
A) carbohydrates B) lipids C) proteins D) nucleotides
A) raise the activation energy until a reaction begins B) permanently blind to reactants, allowing a reaction to occur C) prevent reactions from occurring spontaneously D) require activation energy for a reaction to occur
A) protease B) galactose C) manganese dioxide D) lipid
A) pH of the environment of the reaction B) size of the substrate molecule C) number of enzyme molecules present D) temperature of the environment of the reaction |