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