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