A) go in different directions B) slow down C) speed up D) stop
A) one kind of enzymes that promotes thousands of different chemical reactions 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) thousands of different enzymes, each prompting a different reaction
A) change its shape to adapt to different reactant B) alter equilibrium conditions C) break down more starch molecules D) not be reused
A) increasing the temperature B) lowering the pH C) changing the ionic concentration D) participating in chemical reactions
A) changes the pH of the system B) neutralizes the acids and bases in the system C) alters the active site of the enzyme D) increases the concentration 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) most cellular reactions require a specific, unique enzyme D) enzymes are quickly used up
A) pH B) ionic conditions C) concentration of reactants D) temperature
A) -ase B) -ite C) -ene D) -ose
A) speed up chemical reactions B) all choices are correct C) are affected by temperature and pH D) are proteins
A) providing the substrate required for the reaction to occur B) combining with excess hydrogen to form gaseous wastes C) absorbing water released when polymers are formed D) affecting the rate at which reactions occur
A) temperature of the reaction B) speed of the reaction C) pH of the reaction D) products of the reaction
A) amount of activation B) function of the reactants C) pH of the environment energy required D) structure of the enzyme
A) sugars B) ions C) reactants D) enzymes
A) equilibrium B) rate C) pH D) direction
A) under low pressure B) within a limited pH range C) in a high-saline environment D) at low temperatures
A) electrical energy B) activation energy C) mechanical 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) inactive site C) active site D) substrate
A) inhibitor B) catalyst C) active site D) activation energy
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions C) different enzymes are made in specific areas of the cytoplasm D) enzymes can only bind to specific substrates
A) vacuole formation B) enzyme specificity C) . pinocytosis D) sharing of electrons
A) carbohydrates B) proteins C) nucleotides D) lipids
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) galactose B) lipid C) protease 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 |