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