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