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