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