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