A) slow down B) speed up C) go in different directions D) stop
A) one kind of enzymes that promotes thousands of different chemical reactions B) thousands of different enzymes, each prompting a different reaction C) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
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) lowering the pH C) changing the ionic concentration D) participating in chemical reactions
A) alters the active site of the enzyme B) changes the pH of the system C) neutralizes the acids and bases in the system D) increases the concentration of the enzyme
A) enzymes are quickly used up B) they have to have some way to use up the protein that they consume 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) concentration of reactants B) pH C) temperature D) ionic conditions
A) -ite B) -ase C) -ene D) -ose
A) are affected by temperature and pH B) speed up chemical reactions C) all choices are correct D) are proteins
A) affecting the rate at which reactions occur B) absorbing water released when polymers are formed C) providing the substrate required for the reaction to occur D) combining with excess hydrogen to form gaseous wastes
A) speed of the reaction B) temperature of the reaction C) products of the reaction D) pH of the reaction
A) amount of activation B) structure of the enzyme C) function of the reactants D) pH of the environment energy required
A) ions B) sugars C) enzymes D) reactants
A) rate B) direction C) pH D) equilibrium
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) chemical energy D) electrical energy
A) amylase is denatured at temperature below 37 degrees C B) the lock-and-key model of enzyme action does not apply to amylase C) the optimum temperature for amylase is 37 degrees C D) amylase can function only in the small intestine
A) organic molecule B) inactive site C) substrate D) active site
A) inhibitor B) activation energy C) catalyst D) active site
A) enzymes can only bind to specific substrates B) enzymes are sent to specific substrates by ribosomes C) most enzymes can catalyze many different reactions D) different enzymes are made in specific areas of the cytoplasm
A) enzyme specificity B) vacuole formation C) sharing of electrons D) . pinocytosis
A) proteins B) lipids C) nucleotides D) carbohydrates
A) require activation energy for a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) lipid B) galactose C) protease 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 |