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) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration C) thousands of different enzymes, each prompting a different reaction D) approximately 100 kinds of enzymes, each promoting a different chemical reaction
A) not be reused B) break down more starch molecules C) alter equilibrium conditions D) change its shape to adapt to different reactant
A) increasing the temperature B) lowering the pH C) changing the ionic concentration D) participating in chemical reactions
A) changes the pH of the system B) increases the concentration of the enzyme C) neutralizes the acids and bases in the system D) alters the active site 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) enzymes are quickly used up D) they have to have some way to use up the protein that they consume
A) ionic conditions B) pH C) temperature D) concentration of reactants
A) -ite B) -ase C) -ene D) -ose
A) all choices are correct B) speed up chemical reactions C) are proteins D) are affected by temperature and pH
A) combining with excess hydrogen to form gaseous wastes B) providing the substrate required for the reaction to occur C) affecting the rate at which reactions occur D) absorbing water released when polymers are formed
A) speed of the reaction B) pH of the reaction C) temperature of the reaction D) products of the reaction
A) function of the reactants B) structure of the enzyme C) amount of activation D) pH of the environment energy required
A) reactants B) enzymes C) sugars D) ions
A) pH B) direction C) equilibrium D) rate
A) at low temperatures B) under low pressure C) in a high-saline environment D) within a limited pH range
A) activation energy B) mechanical energy C) electrical energy D) chemical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 37 degrees C C) the lock-and-key model of enzyme action does not apply to amylase D) amylase can function only in the small intestine
A) substrate B) inactive site C) organic molecule D) active site
A) active site B) inhibitor C) catalyst D) activation energy
A) different enzymes are made in specific areas of the cytoplasm B) enzymes can only bind to specific substrates C) enzymes are sent to specific substrates by ribosomes D) most enzymes can catalyze many different reactions
A) enzyme specificity B) . pinocytosis C) vacuole formation D) sharing of electrons
A) lipids B) carbohydrates C) proteins D) nucleotides
A) permanently blind to reactants, allowing a reaction to occur B) raise the activation energy until a reaction begins C) require activation energy for a reaction to occur D) prevent reactions from occurring spontaneously
A) manganese dioxide B) lipid C) galactose D) protease
A) size of the substrate molecule B) number of enzyme molecules present C) pH of the environment of the reaction D) temperature of the environment of the reaction |