DNA Structure - Contents page (Fabien) An Interactive Animated Nonlinear Tutorial by Eric MartzAdapted for using Jmol instead of Chime, by Angel Herráez Part of Biomodel website by Angel Herráez, Univ. de Alcalá (Spain) Disponible también en español. Também disponível em português. Auch verfügbar auf Deutsch. Disponible aussi en français. This version 4.3 works in any Java-compatible browser. If you prefer using Chime for molecular models, the page using it is still available, with equivalent content and functionality. This tutorial is designed to complement Biology or Biochemistry and Molecular Biology books, so it is not by itself a complete introduction to DNA structure. Before proceeding, check that your browser has Java installed and can use the Jmol software: This tutorial is designed to complement an introduction to DNA, by providing tools for a self-directed exploration. Methods, Acknowledgements, and References. Do you know there are more tutorials at MolviZ.Org? More about Jmol: Jmol home page. Version history
World History Microscope Imaging Station. Stem Cells: Cells with Potential. What are stem cells? Your body contains over 200 types of cells, each with a specific job: blood cells carry oxygen; muscle cells contract so that you can move; nerve cells transmit chemical signals. The job of a stem cell is to make new cells. It does this by undergoing an amazing process—differentiating, or changing into another type of cell. Stem cells are the source, or “stem,” for all of the specialized cells that form our organs and tissues. Next: Why invest so much in studying stem cells?
Cell Models For life all cells have basic needs. Cells have diverged in their structure and function to accommodate these survival requirements. Here are some KEY TERMS to help you think, explore and search for similarities and significant differences that have become the characteristics of eukaryote (animal, plant) and prokaryotic (bacteria) cells. Examples might be searching: eukaryote prokaryote reproduction or animal plant cell energy. Reproduction / cell division Energy trapping, storage and consumption Form / shape / structure Cell specialization Compartmentalization of cell functions Communication within and beyond the cell Cell / organism survival Virtual Fetal Pig Dissection | Whitman College (philippe) Welcome to the Whitman College Biology Department's Virtual Pig Dissection (VPD)! This site is designed as a supplement to laboratory dissections exploring introductory mammalian anatomy and physiology — it is basic and many details have been omitted for clarity. We hope that it is suitable for AP Biology students or for students of introductory anatomy and physiology at the college level. We have revised this site to improve the learning experience and accessibility. Within this site, you can navigate to any chapter from the links at the left.
FREE -- Teaching Resources and Lesson Plans from the Federal Government FREE Features These features originally appeared on the FREE.ED.gov features blog. The features highlight resources and ideas related to holidays, awareness months, anniversaries and seasonal topics. January February March April May June July August Back to School: 7 Ways to Help Kids Transition Back to the Classroom September October November December About FREE Federal Resources for Educational Excellence (FREE) offered a way to find digital teaching and learning resources created and maintained by the federal government and public and private organizations. FREE was conceived in 1997 by a federal working group in response to a memo from the President. Technology has made it increasingly easier to find information from government agencies or with custom search tools, like Kids.gov. FREE Disclaimer The U.S.
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Pascaline On your bike: how muscles respond to exercise We all know that exercise makes us fitter and healthier – but what changes take place in our cells to make this happen? Next time you are working out in the gym, or pounding the streets running or jogging, ponder this: the idea of ‘muscle memory’ – that today’s exercise has effects on our muscles years from now – has never been demonstrated scientifically. Does it really exist, and if so, how does it work? These are some of the questions we hope to answer in our on-going research, which aims to pin down the changes that occur in muscles when we exercise, and how our muscles ‘know’ to respond differently to, say, endurance training as opposed to strength training. Helping us to investigate these questions is a large team of volunteers. We assess the fitness of our volunteers before and after participation in the studies by measuring their maximal oxygen uptake. Of course, we already know that regular exercise produces health benefits. Building mitochondria Epigenetic factors Acknowledgement