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