A) go in different directions B) stop C) slow down D) speed up
A) approximately 100 kinds of enzymes, each promoting a different chemical reaction B) one kind of enzymes that promotes thousands of different chemical reactions C) thousands of different enzymes, each prompting a different reaction D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) alter equilibrium conditions B) not be reused C) change its shape to adapt to different reactant D) break down more starch molecules
A) lowering the pH B) increasing the temperature C) participating in chemical reactions D) changing the ionic concentration
A) changes the pH of the system B) neutralizes the acids and bases in the system C) alters the active site of the enzyme D) increases the concentration 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) temperature B) concentration of reactants C) ionic conditions D) pH
A) -ite B) -ase C) -ose D) -ene
A) are proteins B) all choices are correct C) speed up chemical reactions D) are affected by temperature and pH
A) affecting the rate at which reactions occur B) providing the substrate required for the reaction to occur C) absorbing water released when polymers are formed D) combining with excess hydrogen to form gaseous wastes
A) pH of the reaction B) products of the reaction C) speed of the reaction D) temperature of the reaction
A) amount of activation B) structure of the enzyme C) pH of the environment energy required D) function of the reactants
A) ions B) enzymes C) reactants D) sugars
A) pH B) equilibrium C) rate D) direction
A) in a high-saline environment B) within a limited pH range C) under low pressure D) at low temperatures
A) electrical energy B) chemical energy C) activation energy D) mechanical energy
A) the lock-and-key model of enzyme action does not apply to amylase B) the optimum temperature for amylase is 37 degrees C C) amylase can function only in the small intestine D) amylase is denatured at temperature below 37 degrees C
A) substrate B) organic molecule C) inactive site D) active site
A) inhibitor B) active site C) activation energy D) catalyst
A) enzymes can only bind to specific substrates B) most enzymes can catalyze many different reactions C) different enzymes are made in specific areas of the cytoplasm D) enzymes are sent to specific substrates by ribosomes
A) sharing of electrons B) vacuole formation C) enzyme specificity D) . pinocytosis
A) carbohydrates B) proteins C) nucleotides D) lipids
A) require activation energy for a reaction to occur B) raise the activation energy until a reaction begins C) prevent reactions from occurring spontaneously D) permanently blind to reactants, allowing a reaction to occur
A) protease B) galactose C) lipid D) manganese dioxide
A) pH of the environment of the reaction B) number of enzyme molecules present C) size of the substrate molecule D) temperature of the environment of the reaction |