A) stop B) go in different directions C) speed up D) slow down
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) thousands of different enzymes, each prompting a different reaction 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) change its shape to adapt to different reactant C) break down more starch molecules D) alter equilibrium conditions
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) 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) most cellular reactions require a specific, unique enzyme C) they have to have some way to use up the protein that they consume D) enzymes are quickly used up
A) ionic conditions B) temperature C) concentration of reactants D) pH
A) -ose B) -ase C) -ite D) -ene
A) are affected by temperature and pH B) all choices are correct C) speed up chemical reactions 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) speed of the reaction B) temperature of the reaction C) pH of the reaction D) products of the reaction
A) amount of activation B) function of the reactants C) structure of the enzyme D) pH of the environment energy required
A) ions B) enzymes C) reactants D) sugars
A) equilibrium B) pH C) rate D) direction
A) at low temperatures B) within a limited pH range C) under low pressure D) in a high-saline environment
A) mechanical energy B) chemical energy C) activation energy D) electrical 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) active site B) organic molecule C) substrate D) inactive site
A) inhibitor B) active site C) catalyst D) activation energy
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) lipids B) carbohydrates C) nucleotides D) proteins
A) permanently blind to reactants, allowing a reaction to occur B) raise the activation energy until a reaction begins C) require activation energy for a reaction to occur D) prevent reactions from occurring spontaneously
A) galactose B) lipid C) protease D) manganese dioxide
A) pH of the environment of the reaction B) temperature of the environment of the reaction C) number of enzyme molecules present D) size of the substrate molecule |