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