A) go in different directions B) stop C) speed up D) slow down
A) one kind of enzymes that promotes thousands of different chemical reactions B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) thousands of different enzymes, each prompting a different reaction D) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration
A) alter equilibrium conditions B) not be reused C) break down more starch molecules D) change its shape to adapt to different reactant
A) changing the ionic concentration B) lowering the pH C) increasing the temperature D) participating in chemical reactions
A) neutralizes the acids and bases in the system B) changes the pH of the system C) alters the active site of the enzyme D) increases the concentration of the enzyme
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) enzymes are quickly used up D) most cellular reactions require a specific, unique enzyme
A) ionic conditions B) pH C) concentration of reactants D) temperature
A) -ene B) -ose C) -ite D) -ase
A) are proteins B) are affected by temperature and pH C) all choices are correct D) speed up chemical reactions
A) providing the substrate required for the reaction to occur B) combining with excess hydrogen to form gaseous wastes C) absorbing water released when polymers are formed D) affecting the rate at which reactions occur
A) products of the reaction B) temperature of the reaction C) pH of the reaction D) speed of the reaction
A) amount of activation B) structure of the enzyme C) function of the reactants D) pH of the environment energy required
A) reactants B) enzymes C) sugars D) ions
A) equilibrium B) rate C) pH D) direction
A) within a limited pH range B) at low temperatures C) under low pressure D) in a high-saline environment
A) mechanical energy B) chemical 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) amylase is denatured at temperature below 37 degrees C D) the lock-and-key model of enzyme action does not apply to amylase
A) organic molecule B) substrate C) active site D) inactive site
A) catalyst B) activation energy 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) nucleotides B) proteins C) lipids D) carbohydrates
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) galactose B) lipid C) manganese dioxide D) protease
A) size of the substrate molecule B) pH of the environment of the reaction C) number of enzyme molecules present D) temperature of the environment of the reaction |