A) slow down B) go in different directions C) stop D) speed up
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) thousands of different enzymes, each prompting a different reaction 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) 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) neutralizes the acids and bases in the system B) alters the active site of the enzyme C) changes the pH of the system D) increases the concentration of the enzyme
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) enzymes are quickly used up D) most cellular reactions require a specific, unique enzyme
A) pH B) concentration of reactants C) ionic conditions D) temperature
A) -ase B) -ite C) -ene D) -ose
A) are affected by temperature and pH B) speed up chemical reactions C) all choices are correct D) are proteins
A) providing the substrate required for the reaction to occur B) absorbing water released when polymers are formed C) combining with excess hydrogen to form gaseous wastes D) affecting the rate at which reactions occur
A) products of the reaction B) speed of the reaction C) temperature of the reaction D) pH of the reaction
A) structure of the enzyme B) pH of the environment energy required C) function of the reactants D) amount of activation
A) ions B) enzymes C) sugars D) reactants
A) rate B) equilibrium C) pH D) direction
A) under low pressure B) in a high-saline environment C) within a limited pH range D) at low temperatures
A) chemical energy B) mechanical energy C) activation energy D) electrical energy
A) amylase can function only in the small intestine 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) the optimum temperature for amylase is 37 degrees C
A) inactive site B) active site C) substrate D) organic molecule
A) catalyst B) inhibitor C) activation energy D) active site
A) most enzymes can catalyze many different reactions B) different enzymes are made in specific areas of the cytoplasm C) enzymes are sent to specific substrates by ribosomes D) enzymes can only bind to specific substrates
A) sharing of electrons B) vacuole formation C) enzyme specificity D) . pinocytosis
A) proteins B) carbohydrates C) nucleotides D) lipids
A) permanently blind to reactants, allowing a reaction to occur B) require activation energy for a reaction to occur C) prevent reactions from occurring spontaneously D) raise the activation energy until a reaction begins
A) manganese dioxide B) lipid C) galactose D) protease
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 |