A) go in different directions B) stop C) slow down D) speed up
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) break down more starch molecules B) not be reused C) change its shape to adapt to different reactant D) alter equilibrium conditions
A) lowering the pH B) participating in chemical reactions C) increasing the temperature D) changing the ionic concentration
A) alters the active site of the enzyme B) neutralizes the acids and bases in the system C) increases the concentration of the enzyme D) changes the pH of the system
A) most cellular reactions require a specific, unique enzyme B) enzymes are quickly used up C) they have to have some way to use up the protein that they consume D) they have to have some way to use up the protein that they consume
A) ionic conditions B) pH C) temperature D) concentration of reactants
A) -ite B) -ase C) -ose D) -ene
A) all choices are correct B) are proteins 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) speed of the reaction B) pH of the reaction C) products of the reaction D) temperature of the reaction
A) function of the reactants B) pH of the environment energy required C) amount of activation D) structure of the enzyme
A) enzymes B) ions C) reactants D) sugars
A) rate B) direction C) equilibrium D) pH
A) under low pressure B) within a limited pH range C) in a high-saline environment D) at low temperatures
A) mechanical energy B) electrical energy C) chemical energy D) activation 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) active site D) inactive site
A) catalyst B) activation energy C) active site D) inhibitor
A) enzymes can only bind to specific substrates B) most enzymes can catalyze many different reactions C) enzymes are sent to specific substrates by ribosomes D) different enzymes are made in specific areas of the cytoplasm
A) enzyme specificity B) vacuole formation C) sharing of electrons D) . pinocytosis
A) nucleotides B) lipids 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) lipid B) manganese dioxide C) protease D) galactose
A) number of enzyme molecules present B) size of the substrate molecule C) temperature of the environment of the reaction D) pH of the environment of the reaction |