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Ramos-de-la-Peña, Ana Mayela; Mercado-Valenzo, Oscar Mario; Clorio-Carrillo, Jorge Abraham; López-Incio, Jazmin Dessiret; Monroy-Borrego, Andrea Gabriela; Marrero-Bretado, Mariana Monserrat; González-Valdez, José; Aguilar, Oscar – Biochemistry and Molecular Biology Education, 2021
A laboratory exercise for undergraduate advanced students of enzymology and biocatalysis is presented. Since enzyme assays can be quenched or continuous, this experiment compares the performance of two quenching agents for lactase, in a continuous setup. Enzymatic activity of [beta]-galactosidase ("Aspergillus oryzae") was determined…
Descriptors: Science Activities, Undergraduate Students, Advanced Courses, College Science
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Faraj, Santiago Enrique; Rossi, Rolando Carlos; Montes, Mónica Raquel – Journal of Biological Education, 2021
This report describes the implementation of a laboratory exercise for an advanced biochemistry or enzyme kinetics class at the undergraduate or graduate level, designed to improve understanding of protein conformational changes associated with the binding of a ligand. Students measure the fluorescence changes induced by the conformational…
Descriptors: College Science, Biochemistry, Science Instruction, Science Laboratories
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Hurst, Glenn A.; Bella, Malika; Salzmann, Christoph G. – Journal of Chemical Education, 2015
A laboratory experiment was developed to follow the gelation of a polyvinyl alcohol (PVA) solution upon addition of borax by using rotational viscometry. The rheological properties of the gel were examined, measuring the dependence of viscosity and shear stress on the shear rate. Time-dependent studies were also conducted in which the viscosity of…
Descriptors: Chemistry, College Science, Science Instruction, Science Experiments
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Elkins, Kelly M. – Biochemistry and Molecular Biology Education, 2011
This laboratory exercise introduces students to concepts in recombinant DNA technology while accommodating a major semester project in protein purification, structure, and function in a biochemistry laboratory for junior- and senior-level undergraduate students. It is also suitable for forensic science courses focused in DNA biology and advanced…
Descriptors: Biochemistry, Molecular Biology, Laboratory Experiments, Science Experiments
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Famoso, Barbara; La Rocca, Paola; Riggi, Francesco – Physics Education, 2005
An educational study of the barometric effect of cosmic rays was carried out using an inexpensive experimental set-up that allowed for long-term monitoring of atmospheric pressure and cosmic ray flux as measured in a Geiger counter. The investigation was intended as a pilot study in view of ongoing involvements of high-school teams operating…
Descriptors: Physics, Science Instruction, Pilot Projects, High Schools
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Merrell, Philip H.; And Others – Journal of Chemical Education, 1977
Presents an analytical or inorganic chemistry laboratory experiment in preparing nickel macrocyclic complex. (SL)
Descriptors: Advanced Courses, Chemical Analysis, Chemical Reactions, Chemistry