A) go in different directions B) stop C) slow down 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) one kind of enzymes that promotes thousands of different chemical reactions D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) not be reused B) alter equilibrium conditions C) change its shape to adapt to different reactant D) break down more starch molecules
A) participating in chemical reactions B) changing the ionic concentration 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) they have to have some way to use up the protein that they consume 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) enzymes are quickly used up
A) ionic conditions B) temperature C) pH D) concentration of reactants
A) -ene B) -ase C) -ose D) -ite
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) affecting the rate at which reactions occur D) absorbing water released when polymers are formed
A) products of the reaction B) speed of the reaction C) pH 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) sugars B) enzymes C) reactants D) ions
A) direction B) equilibrium C) pH D) rate
A) under low pressure B) within a limited pH range C) in a high-saline environment D) at low temperatures
A) activation energy B) mechanical energy C) electrical energy D) chemical 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) amylase is denatured at temperature below 37 degrees C D) the optimum temperature for amylase is 37 degrees C
A) inactive site B) organic molecule C) substrate D) active site
A) catalyst B) inhibitor C) active site D) activation energy
A) enzymes are sent to specific substrates by ribosomes B) different enzymes are made in specific areas of the cytoplasm C) most enzymes can catalyze many different reactions D) enzymes can only bind to specific substrates
A) sharing of electrons B) . pinocytosis C) vacuole formation D) enzyme specificity
A) lipids B) nucleotides C) proteins D) carbohydrates
A) prevent reactions from occurring spontaneously B) permanently blind to reactants, allowing a reaction to occur C) require activation energy for a reaction to occur D) raise the activation energy until a reaction begins
A) galactose B) manganese dioxide C) lipid D) protease
A) temperature of the environment of the reaction B) size of the substrate molecule C) pH of the environment of the reaction D) number of enzyme molecules present |