A) stop B) speed up C) slow down D) go in different directions
A) one kind of enzymes that promotes thousands of different chemical reactions B) thousands of different enzymes, each prompting a different reaction 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) 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) changing the ionic concentration C) lowering the pH D) increasing the temperature
A) increases the concentration of the enzyme B) changes the pH of the system C) neutralizes the acids and bases in the system D) alters the active site 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) concentration of reactants B) pH C) ionic conditions D) temperature
A) -ene B) -ase C) -ite D) -ose
A) speed up chemical reactions B) are proteins C) are affected by temperature and pH D) all choices are correct
A) affecting the rate at which reactions occur B) absorbing water released when polymers are formed C) combining with excess hydrogen to form gaseous wastes D) providing the substrate required for the reaction to occur
A) speed of the reaction B) products of the reaction C) temperature of the reaction D) pH of the reaction
A) pH of the environment energy required B) amount of activation C) structure of the enzyme D) function of the reactants
A) enzymes B) sugars C) reactants D) ions
A) equilibrium B) pH C) direction D) rate
A) within a limited pH range B) in a high-saline environment C) at low temperatures D) under low pressure
A) electrical energy B) chemical energy C) mechanical energy D) activation energy
A) amylase is denatured at temperature below 37 degrees C B) amylase can function only in the small intestine C) the optimum temperature for amylase is 37 degrees C D) the lock-and-key model of enzyme action does not apply to amylase
A) organic molecule B) substrate C) inactive site D) active site
A) inhibitor B) active site C) activation energy D) catalyst
A) different enzymes are made in specific areas of the cytoplasm B) enzymes can only bind to specific substrates C) enzymes are sent to specific substrates by ribosomes D) most enzymes can catalyze many different reactions
A) . pinocytosis B) sharing of electrons C) vacuole formation D) enzyme specificity
A) carbohydrates B) lipids C) proteins D) nucleotides
A) require activation energy for a reaction to occur B) raise the activation energy until a reaction begins C) permanently blind to reactants, allowing a reaction to occur D) prevent reactions from occurring spontaneously
A) galactose B) manganese dioxide C) protease D) lipid
A) temperature of the environment of the reaction B) size of the substrate molecule C) number of enzyme molecules present D) pH of the environment of the reaction |