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