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