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