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