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