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