A) speed up B) slow down C) stop D) go in different directions
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) thousands of different enzymes, each prompting a different reaction D) approximately 100 kinds of enzymes, each promoting a different chemical 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) participating in chemical reactions B) lowering the pH C) changing the ionic concentration D) increasing the temperature
A) changes the pH of the system B) increases the concentration of the enzyme C) alters the active site of the enzyme D) neutralizes the acids and bases in 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) pH B) temperature C) ionic conditions D) concentration of reactants
A) -ose B) -ene C) -ite D) -ase
A) all choices are correct B) are affected by temperature and pH C) are proteins D) speed up chemical reactions
A) absorbing water released when polymers are formed B) combining with excess hydrogen to form gaseous wastes C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) temperature of the reaction B) speed of the reaction C) pH of the reaction D) products of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) enzymes B) sugars C) ions D) reactants
A) rate B) equilibrium C) pH D) direction
A) at low temperatures B) within a limited pH range C) under low pressure D) in a high-saline environment
A) chemical energy B) mechanical energy C) electrical energy D) activation energy
A) the optimum temperature for amylase is 37 degrees C B) the lock-and-key model of enzyme action does not apply to amylase C) amylase is denatured at temperature below 37 degrees C D) amylase can function only in the small intestine
A) inactive site B) organic molecule C) substrate D) active site
A) inhibitor B) active site C) catalyst D) activation energy
A) different enzymes are made in specific areas of the cytoplasm B) enzymes can only bind to specific substrates C) most enzymes can catalyze many different reactions D) enzymes are sent to specific substrates by ribosomes
A) enzyme specificity B) sharing of electrons C) vacuole formation D) . pinocytosis
A) nucleotides B) proteins C) lipids D) carbohydrates
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) protease B) galactose C) lipid D) manganese dioxide
A) size of the substrate molecule B) pH of the environment of the reaction C) number of enzyme molecules present D) temperature of the environment of the reaction |