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Chiappero, Julieta; Cappellari, Lorena del Rosario; Palermo, Tamara Belen; Giordano, Walter; Banchio, Erika – Biochemistry and Molecular Biology Education, 2021
Drought is a major environmental stress factor that affects the growth and development of plants. All plants have to maintain the reactive oxygen species within certain levels for normal cellular homeostasis by means of their antioxidant systems, which can be classified as enzymatic and non-enzymatic. Plants under drought stress generate an excess…
Descriptors: Natural Disasters, Weather, Plants (Botany), Scientific Concepts
Bagley, James R.; Galpin, Andrew J. – Biochemistry and Molecular Biology Education, 2015
Interdisciplinary exploration is vital to education in the 21st century. This manuscript outlines an innovative laboratory-based teaching method that combines elements of biochemistry/molecular biology, kinesiology/health science, computer science, and manufacturing engineering to give students the ability to better conceptualize complex…
Descriptors: Human Body, Cytology, Interdisciplinary Approach, Visual Aids
Kay, Alan R. – Advances in Physiology Education, 2014
Hodgkin and Huxley's (5) revealing the origins of cellular excitability is one of the great triumphs of physiology. In an extraordinarily deft series of papers, they were able to measure the essential electrical characteristics of neurons and synthesize them into a quantitative model that accounts for the excitability of neurons and other…
Descriptors: Physiology, Cytology, Equations (Mathematics), Undergraduate Study
Schacher, Samuel; Hu, Jiang-Yuan – Learning & Memory, 2014
An important cellular mechanism contributing to the strength and duration of memories is activity-dependent alterations in the strength of synaptic connections within the neural circuit encoding the memory. Reversal of the memory is typically correlated with a reversal of the cellular changes to levels expressed prior to the stimulation. Thus, for…
Descriptors: Brain Hemisphere Functions, Stimuli, Molecular Structure, Neurological Organization
Mahfoud, Ziyad; Ghandour, Lilian; Ghandour, Blanche; Mokdad, Ali H.; Sibai, Abla M. – Field Methods, 2015
Findings on the reliability and cost-effectiveness of the use of cellular phones vis-à-vis face-to-face interviews in investigating health behaviors and conditions are presented for a national epidemiological sample from Lebanon. Using self-reported responses on identical questions, percentage agreement, ? statistics, and McNemar's test were used…
Descriptors: Telephone Surveys, Interviews, Surveys, Responses
Berkes, Charlotte; Chan, Leo Li-Ying – Bioscene: Journal of College Biology Teaching, 2015
We have developed a semester-long laboratory project for an undergraduate immunology course in which students study multiple aspects of macrophage biology including differentiation from progenitors in the bone marrow, activation upon stimulation with microbial ligands, expression of cell surface markers, and modulation of cytokine production. In…
Descriptors: Science Instruction, College Science, Undergraduate Students, Science Laboratories
Resendes, Karen K. – Biochemistry and Molecular Biology Education, 2015
Incorporating scientific literacy into inquiry driven research is one of the most effective mechanisms for developing an undergraduate student's strength in writing. Additionally, discovery-based laboratories help develop students who approach science as critical thinkers. Thus, a three-week laboratory module for an introductory cell and molecular…
Descriptors: Introductory Courses, Cytology, Science Instruction, Teaching Methods
van Mil, Marc H. W.; Boerwinkel, Dirk Jan; Waarlo, Arend Jan – Science & Education, 2013
Although molecular-level details are part of the upper-secondary biology curriculum in most countries, many studies report that students fail to connect molecular knowledge to phenomena at the level of cells, organs and organisms. Recent studies suggest that students lack a framework to reason about complex systems to make this connection. In this…
Descriptors: Heuristics, Research Methodology, Molecular Biology, Scientists
Dade County Public Schools, Miami, FL. – 1971
This instructional package contains two biological units developed for the Dade County Florida Quinmester Program. "Introduction to Life Sciences" develops student understandings of cell structure and function, and compares different levels of cellular organization. "Cell Biology" investigates the origin of modern cellular…
Descriptors: Biology, Cytology, Instruction, Objectives
Yesim Yener; Mehmet Bahar; Naciye Somuncu Demir; Mustafa Yilmaz; Dündar Yener – Journal of Baltic Science Education, 2018
In this research word association test was used to explore the cognitive structure of Pre-service science teachers about biological energy metabolism. The participant group constitutes 67 Preservice students at a university in Black Sea Region of Turkey. Ten key concepts in General Biology course were given as a stimulating word and a mind map was…
Descriptors: Cognitive Structures, Preservice Teachers, Science Teachers, Scientific Concepts
Watters, Christopher – Cell Biology Education, 2003
Neutrophils are white blood cells specialized for scavenging cellular debris and consuming infectious microorganisms in a process called "phagocytosis." What seems to make neutrophils especially voracious is the presence of antibodies (or opsonins) coating the surface of foreign cells. Recently, Dewitt and Hallett (2002) examined the role of…
Descriptors: Microbiology, Cytology, Motion, Experiments
Elmesky, Rowhea – Research in Science Education, 2013
This article describes the substance, structure, and rationale of a learning progression in genetics spanning kindergarten through twelfth grade (K-12). The learning progression is designed to build a foundation towards understanding protein structure and activity and should be viewed as one possible pathway to understanding concepts of genetics…
Descriptors: Elementary Secondary Education, Genetics, Biology, Scientific Concepts
Blair, Bethany L.; Fletcher, Anne C.; Gaskin, Erin R. – Youth & Society, 2015
The primary aim of this study was to examine how and why adolescents make decisions regarding whether to conduct their communication via texting versus calling features of cellular telephones. Individual semistructured qualitative interviews were conducted with 41 adolescents aged 14 to 18 focusing on their use of calling and texting when…
Descriptors: Adolescents, Decision Making, Telecommunications, Written Language
Ji, Li Li – Advances in Physiology Education, 2015
Skeletal muscle contraction is associated with the production of ROS due to altered O[subscript 2] distribution and flux in the cell. Despite a highly efficient antioxidant defense, a small surplus of ROS, such as hydrogen peroxide and nitric oxide, may serve as signaling molecules to stimulate cellular adaptation to reach new homeostasis largely…
Descriptors: Aging (Individuals), Exercise, Exercise Physiology, Older Adults
Goodsell, David S. – Biochemistry and Molecular Biology Education, 2011
Diverse biological data may be used to create illustrations of molecules in their cellular context. This report describes the scientific results that support an illustration of a eukaryotic cell, enlarged by one million times to show the distribution and arrangement of macromolecules. The panoramic cross section includes eight panels that extend…
Descriptors: Biochemistry, Molecular Structure, Science Instruction, Spectroscopy