Reviews the biological importance of the lipids categorized as waxes and describes some of the organic chemistry of these compounds. Presents a short laboratory exercise on the extraction of plant waxes and their analysis by thin layer chromatography. (Author/CCM)

Presents a solution to the problem of finding the source of extra reducing equivalents, and accomplishing the stoichiometry of glucose oxidation reactions. Discusses the citric acid cycle and glycolysis. (CW)

Describes a science activity designed for undergraduate biochemistry classes. Provides background, a list of materials, experimental procedures, and the results of this experiment. (CW)

Presents a practical exercise that enables students to measure flux control coefficients in a metabolic pathway in vitro, to verify the summation property, and to compare the differences in the distribution of these coefficients in different steady states. Discusses background, materials, methods, and results of the activity. (CW)

Describes a three-week sequence to take undergraduate students through the study of enzyme kinetics in an integrated manner that reinforces the basic concepts of initial velocity and the effects of varying operational parameters. Discusses laboratory sessions and the use of a microcomputer in instruction. (CW)

Describes three activities, substrate inhibition, product inhibition by fructose and glucose, and gel immobilization of invertase for use with undergraduate biochemistry classes. Discusses materials, methods, and results. Stresses the advantages of practical exercises in undergraduate classes. (CW)

Describes a program to support lectures on analytical centrifugation, and to illustrate the manner in which useful analytical data about macromolecules can be obtained from simple centrifugation studies without the need for mathematical expertise. Discusses the background, methods, calculations, and results involved in this activity. (CW)