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