A) stop B) speed up C) slow down D) go in different directions
A) one kind of enzymes that promotes thousands of different chemical reactions B) thousands of different enzymes, each prompting a different reaction C) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) not be reused B) alter equilibrium conditions C) break down more starch molecules D) change its shape to adapt to different reactant
A) changing the ionic concentration B) increasing the temperature C) participating in chemical reactions D) lowering the pH
A) alters the active site of the enzyme B) increases the concentration of the enzyme C) neutralizes the acids and bases in the system D) changes the pH of the system
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) -ase B) -ene C) -ite D) -ose
A) are proteins B) speed up chemical reactions C) are affected by temperature and pH D) all choices are correct
A) affecting the rate at which reactions occur B) absorbing water released when polymers are formed C) combining with excess hydrogen to form gaseous wastes D) providing the substrate required for the reaction to occur
A) pH of the reaction B) temperature of the reaction C) speed of the reaction D) products of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) sugars B) enzymes C) ions D) reactants
A) pH B) equilibrium C) rate D) direction
A) under low pressure B) within a limited pH range C) at low temperatures D) in a high-saline environment
A) mechanical energy B) chemical energy C) activation energy D) electrical energy
A) the lock-and-key model of enzyme action does not apply to amylase B) the optimum temperature for amylase is 37 degrees C C) amylase can function only in the small intestine D) amylase is denatured at temperature below 37 degrees C
A) inactive site B) active site C) organic molecule D) substrate
A) catalyst B) inhibitor C) activation energy D) active site
A) enzymes are sent to specific substrates by ribosomes B) different enzymes are made in specific areas of the cytoplasm C) enzymes can only bind to specific substrates D) most enzymes can catalyze many different reactions
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) prevent reactions from occurring spontaneously C) permanently blind to reactants, allowing a reaction to occur D) require activation energy for a reaction to occur
A) galactose B) manganese dioxide C) lipid D) protease
A) temperature of the environment of the reaction B) pH of the environment of the reaction C) size of the substrate molecule D) number of enzyme molecules present |