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