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