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