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