A) speed up B) go in different directions C) slow down D) stop
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) change its shape to adapt to different reactant B) alter equilibrium conditions C) not be reused D) break down more starch molecules
A) participating in chemical reactions B) increasing the temperature C) lowering the pH D) changing the ionic concentration
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) most cellular reactions require a specific, unique enzyme B) enzymes are quickly used up 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) ionic conditions C) pH D) concentration of reactants
A) -ase B) -ene C) -ose D) -ite
A) speed up chemical reactions B) all choices are correct C) are affected by temperature and pH D) are proteins
A) absorbing water released when polymers are formed B) providing the substrate required for the reaction to occur C) combining with excess hydrogen to form gaseous wastes D) affecting the rate at which reactions occur
A) products of the reaction B) pH of the reaction C) speed of the reaction D) temperature of the reaction
A) structure of the enzyme B) pH of the environment energy required C) amount of activation D) function of the reactants
A) enzymes B) ions C) reactants D) sugars
A) equilibrium B) rate C) pH D) direction
A) under low pressure B) at low temperatures C) in a high-saline environment D) within a limited pH range
A) chemical energy B) electrical energy C) mechanical energy D) activation energy
A) the optimum temperature for amylase is 37 degrees C B) amylase can function only in the small intestine C) the lock-and-key model of enzyme action does not apply to amylase 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) most enzymes can catalyze many different reactions B) enzymes can only bind to specific substrates C) different enzymes are made in specific areas of the cytoplasm D) enzymes are sent to specific substrates by ribosomes
A) enzyme specificity B) sharing of electrons C) . pinocytosis D) vacuole formation
A) nucleotides B) lipids C) carbohydrates D) proteins
A) raise the activation energy until a reaction begins B) require activation energy for a reaction to occur C) permanently blind to reactants, allowing a reaction to occur D) prevent reactions from occurring spontaneously
A) lipid B) protease C) manganese dioxide 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 |