A) speed up B) go in different directions C) stop D) slow down
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) alter equilibrium conditions C) break down more starch molecules D) not be reused
A) lowering the pH B) participating in chemical reactions C) changing the ionic concentration D) increasing the temperature
A) increases the concentration of the enzyme B) neutralizes the acids and bases in the system C) alters the active site of the enzyme D) changes the pH of 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) pH C) concentration of reactants D) ionic conditions
A) -ose B) -ite C) -ene D) -ase
A) speed up chemical reactions B) all choices are correct C) are affected by temperature and pH D) are proteins
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) 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) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) ions B) sugars C) enzymes D) reactants
A) rate B) pH C) equilibrium D) direction
A) in a high-saline environment B) at low temperatures C) within a limited pH range D) under low pressure
A) activation energy B) chemical energy C) electrical energy D) mechanical 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) organic molecule B) active site C) inactive site D) substrate
A) inhibitor B) active site C) catalyst D) activation energy
A) different enzymes are made in specific areas of the cytoplasm B) enzymes are sent to specific substrates by ribosomes C) most enzymes can catalyze many different reactions D) enzymes can only bind to specific substrates
A) enzyme specificity B) . pinocytosis C) vacuole formation D) sharing of electrons
A) carbohydrates B) proteins C) nucleotides D) lipids
A) permanently blind to reactants, allowing a reaction to occur B) prevent reactions from occurring spontaneously C) require activation energy for a reaction to occur D) raise the activation energy until a reaction begins
A) galactose B) lipid C) manganese dioxide D) protease
A) number of enzyme molecules present B) temperature of the environment of the reaction C) size of the substrate molecule D) pH of the environment of the reaction |