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