A) speed up B) stop C) go in different directions D) slow down
A) thousands of different enzymes, each prompting a different reaction B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) one kind of enzymes that promotes thousands of different chemical reactions D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) break down more starch molecules B) alter equilibrium conditions C) not be reused D) change its shape to adapt to different reactant
A) increasing the temperature B) participating in chemical reactions C) lowering the pH D) changing the ionic concentration
A) increases the concentration of the enzyme B) neutralizes the acids and bases in the system C) changes the pH of the system D) alters the active site of the enzyme
A) enzymes are quickly used up 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) most cellular reactions require a specific, unique enzyme
A) pH B) temperature C) ionic conditions D) concentration of reactants
A) -ene B) -ose C) -ase D) -ite
A) all choices are correct B) speed up chemical reactions C) are affected by temperature and pH D) are proteins
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) pH of the reaction B) speed of the reaction C) products of the reaction D) temperature 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) enzymes B) sugars C) ions D) reactants
A) direction B) rate C) pH D) equilibrium
A) in a high-saline environment B) at low temperatures C) under low pressure D) within a limited pH range
A) electrical energy B) mechanical energy C) activation energy D) chemical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 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) inactive site D) active site
A) active site B) activation energy C) inhibitor D) catalyst
A) enzymes can only bind to specific substrates B) enzymes are sent to specific substrates by ribosomes C) most enzymes can catalyze many different reactions D) different enzymes are made in specific areas of the cytoplasm
A) . pinocytosis B) vacuole formation C) enzyme specificity D) sharing of electrons
A) lipids B) proteins C) nucleotides D) carbohydrates
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) manganese dioxide C) galactose D) lipid
A) temperature of the environment of the reaction B) size of the substrate molecule C) pH of the environment of the reaction D) number of enzyme molecules present |