Here, we describe a laboratory experiment as part of an upper-level vertebrate physiology course for biology majors to investigate the physiological response of vertebrates to osmoregulatory challenges. The experiment involves measuring plasma osmolality and Na[superscript +] -K[superscript +] -ATPase activity in gill tissue of teleost fish…

The ability to perform a laboratory experiment as a nonhands-on observer, such as in a distance education context, has been questioned by some educators who ponder whether distance education lab courses are as effective as those held in a physical laboratory environment. This article examines this issue and compares the performance of distance…

Many students view biology and chemistry as two unrelated, separate sciences; how these courses are generally taught in high schools may do little to change that impression. The study of enzymes provide a great opportunity for both biology and chemistry teachers to share with students the interdisciplinary nature of science. This article describes…

Evaluation tools are provided that help students' peer-assessment and self-assessment in group activities for the laboratories and classroom. The self- and peer-evaluations have helped teachers provide better feedback to the students and feel more confident in assigning each individual a grade for their contribution to the group laboratory project.

The traditional range of marine microcosm laboratory experiments is presented as an ideal environment to teach the entire analysis process. The microcosm lab provides student-centered approach with opportunities for collaborative learning and to develop critical communication skills.

The experiment described is an excellent opportunity to apply theoretical concepts of distillation, thermodynamics of mixtures and process simulation at laboratory scale, and simultaneously enhance the ability of students to operate, control and monitor complex units.

The study describes how to design and optimize an experiment with multiple factors and multiple responses. The experiment uses fractional factorial analysis as a screening experiment only to identify important instrumental factors and does not use response surface methodology to find the optimal set of conditions.

Describes in detail the laboratory procedure for studying the process of amitosis in the vegetative cells of Nitella axillaris. (BR)

Procedures and discussion of an experiment to be used in an undergraduate course in spectroscopy are presented. The experiment involves the measurement of the absorption spectrum of sodium vapor. (DT)

An electron-spin-resonance experiment which has been successfully performed in an advanced undergraduate physics laboratory is described. A discussion of that part of the theory of magnetic resonance necessary for the understanding of the experiment is also provided in this article. (DT)

Presents a multipart experiment utilizing the same two compounds in preparation, interpretation of infrared spectra, and kinetic study. Several extensions of the experiment are included. (SLH)