A) speed up B) go in different directions C) slow down D) stop
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) thousands of different enzymes, each prompting a different reaction D) one kind of enzymes that promotes thousands of different chemical reactions
A) change its shape to adapt to different reactant B) not be reused C) break down more starch molecules D) alter equilibrium conditions
A) changing the ionic concentration B) increasing the temperature C) lowering the pH D) participating in chemical reactions
A) neutralizes the acids and bases in the system B) changes the pH of the system C) alters the active site of the enzyme 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) they have to have some way to use up the protein that they consume D) most cellular reactions require a specific, unique enzyme
A) temperature B) concentration of reactants C) ionic conditions D) pH
A) -ite B) -ene C) -ase D) -ose
A) are proteins B) all choices are correct C) are affected by temperature and pH D) speed up chemical reactions
A) combining with excess hydrogen to form gaseous wastes B) providing the substrate required for the reaction to occur C) absorbing water released when polymers are formed D) affecting the rate at which reactions occur
A) products of the reaction B) temperature of the reaction C) pH of the reaction D) speed 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) sugars B) enzymes C) reactants D) ions
A) direction B) rate C) equilibrium D) pH
A) within a limited pH range B) in a high-saline environment C) under low pressure D) at low temperatures
A) chemical energy B) activation energy C) electrical energy D) mechanical 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) amylase can function only in the small intestine D) the optimum temperature for amylase is 37 degrees C
A) active site B) substrate C) organic molecule D) inactive site
A) catalyst B) inhibitor C) activation energy D) active site
A) enzymes are sent to specific substrates by ribosomes B) most enzymes can catalyze many different reactions C) enzymes can only bind to specific substrates D) different enzymes are made in specific areas of the cytoplasm
A) sharing of electrons B) enzyme specificity C) vacuole formation D) . pinocytosis
A) proteins B) lipids C) nucleotides D) carbohydrates
A) prevent reactions from occurring spontaneously B) require activation energy for a reaction to occur C) permanently blind to reactants, allowing a reaction to occur D) raise the activation energy until a reaction begins
A) galactose B) manganese dioxide C) lipid D) protease
A) size of the substrate molecule B) number of enzyme molecules present C) temperature of the environment of the reaction D) pH of the environment of the reaction |