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