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