A) speed up B) stop C) go in different directions D) slow down
A) approximately 100 kinds of enzymes, each promoting a different chemical reaction B) thousands of different enzymes, each prompting a different reaction C) one kind of enzymes that promotes thousands of different chemical reactions D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) break down more starch molecules B) change its shape to adapt to different reactant C) alter equilibrium conditions D) not be reused
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) alters the active site of the enzyme C) increases the concentration of the enzyme D) neutralizes the acids and bases in the system
A) they have to have some way to use up the protein that they consume B) enzymes are quickly used up C) most cellular reactions require a specific, unique enzyme D) they have to have some way to use up the protein that they consume
A) pH B) temperature C) concentration of reactants D) ionic conditions
A) -ene B) -ase C) -ite D) -ose
A) all choices are correct B) speed up chemical reactions C) are affected by temperature and pH D) are proteins
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) speed of the reaction B) products of the reaction C) temperature of the reaction D) pH of the reaction
A) pH of the environment energy required B) amount of activation C) structure of the enzyme D) function of the reactants
A) sugars B) ions C) reactants D) enzymes
A) rate B) pH C) equilibrium D) direction
A) at low temperatures B) under low pressure C) in a high-saline environment D) within a limited pH range
A) mechanical energy B) activation energy C) electrical energy D) chemical 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) inactive site B) organic molecule C) active site D) substrate
A) catalyst B) activation energy C) inhibitor D) active site
A) most enzymes can catalyze many different reactions B) different enzymes are made in specific areas of the cytoplasm C) enzymes can only bind to specific substrates D) enzymes are sent to specific substrates by ribosomes
A) enzyme specificity B) sharing of electrons C) . pinocytosis D) vacuole formation
A) carbohydrates B) nucleotides C) proteins D) lipids
A) prevent reactions from occurring spontaneously B) require activation energy for a reaction to occur C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) manganese dioxide B) lipid C) protease D) galactose
A) pH of the environment of the reaction B) size of the substrate molecule C) temperature of the environment of the reaction D) number of enzyme molecules present |