A) stop B) slow down C) speed up D) go in different directions
A) thousands of different enzymes, each prompting a different reaction 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) one kind of enzymes that promotes thousands of different chemical reactions
A) not be reused B) change its shape to adapt to different reactant 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) 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) most cellular reactions require a specific, unique enzyme B) they have to have some way to use up the protein that they consume C) enzymes are quickly used up D) they have to have some way to use up the protein that they consume
A) temperature B) concentration of reactants C) pH D) ionic conditions
A) -ase B) -ene C) -ose D) -ite
A) are proteins B) all choices are correct C) are affected by temperature and pH D) speed up chemical reactions
A) affecting the rate at which reactions occur B) combining with excess hydrogen to form gaseous wastes C) absorbing water released when polymers are formed D) providing the substrate required for the reaction to occur
A) speed of the reaction B) products of the reaction C) pH of the reaction D) temperature of the reaction
A) amount of activation B) pH of the environment energy required C) structure of the enzyme D) function of the reactants
A) enzymes B) sugars C) ions D) reactants
A) equilibrium B) rate C) direction D) pH
A) at low temperatures B) in a high-saline environment C) within a limited pH range D) under low pressure
A) mechanical energy B) chemical energy C) activation energy D) electrical energy
A) amylase can function only in the small intestine 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 is denatured at temperature below 37 degrees C
A) active site B) substrate C) inactive site D) organic molecule
A) activation energy B) active site C) inhibitor D) catalyst
A) most enzymes can catalyze many different reactions B) enzymes can only bind to specific substrates C) different enzymes are made in specific areas of the cytoplasm D) enzymes are sent to specific substrates by ribosomes
A) sharing of electrons B) enzyme specificity C) . pinocytosis D) vacuole formation
A) proteins B) nucleotides C) lipids D) carbohydrates
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) galactose B) lipid C) protease D) manganese dioxide
A) size of the substrate molecule B) temperature of the environment of the reaction C) number of enzyme molecules present D) pH of the environment of the reaction |