A) slow down B) go in different directions C) stop D) speed up
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) change its shape to adapt to different reactant B) break down more starch molecules C) alter equilibrium conditions D) not be reused
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) 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) concentration of reactants B) ionic conditions C) temperature D) pH
A) -ite B) -ose C) -ase D) -ene
A) are affected by temperature and pH B) speed up chemical reactions C) all choices are correct D) are proteins
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) pH of the reaction B) products of the reaction C) temperature of the reaction D) speed of the reaction
A) structure of the enzyme B) amount of activation C) function of the reactants D) pH of the environment energy required
A) ions B) reactants C) sugars D) enzymes
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) chemical energy B) activation energy C) electrical energy D) mechanical energy
A) the lock-and-key model of enzyme action does not apply to amylase B) amylase can function only in the small intestine C) the optimum temperature for amylase is 37 degrees C D) amylase is denatured at temperature below 37 degrees C
A) organic molecule B) substrate C) inactive site D) active site
A) catalyst B) active site C) inhibitor D) activation energy
A) different enzymes are made in specific areas of the cytoplasm B) enzymes can only bind to specific substrates C) most enzymes can catalyze many different reactions D) enzymes are sent to specific substrates by ribosomes
A) enzyme specificity B) vacuole formation C) . pinocytosis D) sharing of electrons
A) carbohydrates B) proteins C) nucleotides D) lipids
A) permanently blind to reactants, allowing a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) require activation energy for a reaction to occur
A) lipid B) protease C) galactose D) manganese dioxide
A) size of the substrate molecule B) temperature of the environment of the reaction C) pH of the environment of the reaction D) number of enzyme molecules present |