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