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