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