A) speed up B) go in different directions C) stop 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) thousands of different enzymes, each prompting a different reaction D) one kind of enzymes that promotes thousands of different chemical reactions
A) not be reused B) alter equilibrium conditions C) break down more starch molecules D) change its shape to adapt to different reactant
A) participating in chemical reactions B) increasing the temperature C) lowering the pH 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) they have to have some way to use up the protein that they consume 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) enzymes are quickly used up
A) concentration of reactants B) pH C) temperature D) ionic conditions
A) -ose B) -ene C) -ite D) -ase
A) all choices are correct B) speed up chemical reactions C) are affected by temperature and pH D) are proteins
A) combining with excess hydrogen to form gaseous wastes B) absorbing water released when polymers are formed C) affecting the rate at which reactions occur D) providing the substrate required for the reaction to occur
A) products of the reaction B) speed of the reaction C) pH of the reaction D) temperature of the reaction
A) amount of activation B) pH of the environment energy required C) function of the reactants D) structure of the enzyme
A) reactants B) ions C) sugars D) enzymes
A) pH B) direction C) equilibrium D) rate
A) at low temperatures B) in a high-saline environment C) under low pressure D) within a limited pH range
A) electrical energy B) chemical energy C) mechanical energy D) activation energy
A) amylase can function only in the small intestine B) the lock-and-key model of enzyme action does not apply to amylase C) the optimum temperature for amylase is 37 degrees C D) amylase is denatured at temperature below 37 degrees C
A) active site B) organic molecule C) substrate D) inactive site
A) inhibitor B) activation energy C) active site D) catalyst
A) different enzymes are made in specific areas of the cytoplasm B) most enzymes can catalyze many different reactions C) enzymes can only bind to specific substrates D) enzymes are sent to specific substrates by ribosomes
A) enzyme specificity B) sharing of electrons C) vacuole formation D) . pinocytosis
A) nucleotides B) lipids C) proteins D) carbohydrates
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) galactose B) manganese dioxide C) lipid D) protease
A) pH of the environment of the reaction B) size of the substrate molecule C) temperature of the environment of the reaction D) number of enzyme molecules present |