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