A) speed up B) slow down C) stop 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) thousands of different enzymes, each prompting a different reaction D) one kind of enzymes that promotes thousands of different chemical reactions
A) not be reused B) break down more starch molecules C) change its shape to adapt to different reactant 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) increases the concentration of the enzyme C) changes the pH of the system D) neutralizes the acids and bases in the system
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) they have to have some way to use up the protein that they consume D) enzymes are quickly used up
A) temperature B) pH C) ionic conditions D) concentration of reactants
A) -ase B) -ose C) -ene D) -ite
A) are affected by temperature and pH B) are proteins C) speed up chemical reactions D) all choices are correct
A) providing the substrate required for the reaction to occur B) affecting the rate at which reactions occur C) absorbing water released when polymers are formed D) combining with excess hydrogen to form gaseous wastes
A) pH of the reaction B) speed of the reaction C) temperature of the reaction D) products of the reaction
A) structure of the enzyme B) function of the reactants C) pH of the environment energy required D) amount of activation
A) reactants B) enzymes C) sugars D) ions
A) direction B) pH C) rate D) equilibrium
A) in a high-saline environment B) under low pressure C) at low temperatures D) within a limited pH range
A) electrical energy B) activation energy C) mechanical energy D) chemical energy
A) amylase is denatured at temperature below 37 degrees C B) amylase can function only in the small intestine C) the lock-and-key model of enzyme action does not apply to amylase D) the optimum temperature for amylase is 37 degrees C
A) organic molecule B) active site C) inactive site D) substrate
A) inhibitor B) active site C) activation energy D) catalyst
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) sharing of electrons B) . pinocytosis C) enzyme specificity D) vacuole formation
A) carbohydrates B) nucleotides C) proteins D) lipids
A) prevent reactions from occurring spontaneously B) raise the activation energy until a reaction begins C) permanently blind to reactants, allowing a reaction to occur D) require activation energy for a reaction to occur
A) protease B) lipid C) galactose D) manganese dioxide
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 |