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