A) go in different directions B) slow down C) speed up D) stop
A) approximately 100 kinds of enzymes, each promoting a different chemical reaction B) thousands of different enzymes, each prompting a different reaction C) one kind of enzymes that promotes thousands of different chemical reactions D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) change its shape to adapt to different reactant B) alter equilibrium conditions C) break down more starch molecules D) not be reused
A) changing the ionic concentration B) lowering the pH C) participating in chemical reactions D) increasing the temperature
A) changes the pH of the system B) alters the active site of the enzyme C) increases the concentration of the enzyme D) neutralizes the acids and bases in the system
A) they have to have some way to use up the protein that they consume 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) enzymes are quickly used up
A) concentration of reactants B) temperature C) ionic conditions D) pH
A) -ite B) -ene C) -ose D) -ase
A) all choices are correct B) speed up chemical reactions C) are proteins D) are affected by temperature and pH
A) absorbing water released when polymers are formed B) combining with excess hydrogen to form gaseous wastes C) providing the substrate required for the reaction to occur D) affecting the rate at which reactions occur
A) speed of the reaction B) temperature of the reaction C) products of the reaction D) pH of the reaction
A) structure of the enzyme B) amount of activation C) function of the reactants D) pH of the environment energy required
A) enzymes B) reactants C) ions D) sugars
A) direction B) rate C) pH D) equilibrium
A) within a limited pH range B) at low temperatures C) under low pressure D) in a high-saline environment
A) chemical energy B) electrical energy C) mechanical energy D) activation 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) inactive site B) substrate C) organic molecule D) active site
A) inhibitor B) catalyst C) activation energy D) active site
A) enzymes are sent to specific substrates by ribosomes B) enzymes can only bind to specific substrates C) different enzymes are made in specific areas of the cytoplasm D) most enzymes can catalyze many different reactions
A) . pinocytosis B) enzyme specificity C) sharing of electrons D) vacuole formation
A) carbohydrates B) lipids C) proteins D) nucleotides
A) require activation energy for a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) lipid B) manganese dioxide C) galactose D) protease
A) number of enzyme molecules present B) pH of the environment of the reaction C) size of the substrate molecule D) temperature of the environment of the reaction |