A) go in different directions B) stop C) speed up D) slow down
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) one kind of enzymes that promotes thousands of different chemical reactions C) approximately 100 kinds of enzymes, each promoting a different chemical reaction D) thousands of different enzymes, each prompting a different reaction
A) break down more starch molecules B) not be reused C) change its shape to adapt to different reactant D) alter equilibrium conditions
A) changing the ionic concentration B) participating in chemical reactions C) lowering the pH D) increasing the temperature
A) neutralizes the acids and bases in the system B) increases the concentration of the enzyme C) alters the active site of the enzyme D) changes the pH of the system
A) enzymes are quickly used up 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) 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) -ite B) -ase C) -ose D) -ene
A) speed up chemical reactions B) all choices are correct C) are proteins 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) function of the reactants B) structure of the enzyme C) pH of the environment energy required D) amount of activation
A) sugars B) reactants C) enzymes D) ions
A) rate B) direction C) equilibrium D) pH
A) in a high-saline environment B) within a limited pH range C) under low pressure D) at low temperatures
A) electrical energy B) activation energy C) mechanical energy D) chemical energy
A) amylase can function only in the small intestine B) amylase is denatured at temperature below 37 degrees C C) the lock-and-key model of enzyme action does not apply to amylase D) the optimum temperature for amylase is 37 degrees C
A) substrate B) inactive site C) organic molecule D) active site
A) catalyst B) activation energy C) active site D) inhibitor
A) enzymes can only bind to specific substrates B) most enzymes can catalyze many different reactions C) enzymes are sent to specific substrates by ribosomes D) different enzymes are made in specific areas of the cytoplasm
A) enzyme specificity B) vacuole formation C) sharing of electrons D) . pinocytosis
A) carbohydrates B) lipids C) nucleotides D) proteins
A) permanently blind to reactants, allowing a reaction to occur B) require activation energy for a reaction to occur C) prevent reactions from occurring spontaneously D) raise the activation energy until a reaction begins
A) protease B) manganese dioxide C) lipid D) galactose
A) number of enzyme molecules present B) temperature of the environment of the reaction C) size of the substrate molecule D) pH of the environment of the reaction |