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