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