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