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