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