BiologyWise
Biology Wise: Examples of Homologous Structures
Explains what homologous structures are and how they indicate common ancestry between species. Discusses morphological homology, which refers to anatomical and skeletal similarities, and molecular homology, which refers to common...
CK-12 Foundation
Ck 12: Molecular Geometry
[Free Registration/Login may be required to access all resource tools.] In this interactive learning module, students will learn a technique to predict molecular geometry based on a molecule's Lewis electron dot structure.
National Institutes of Health
Ncbi: The Molecular Biology of the Cell: The Chemical Components of a Cell
Advanced chapter of the book "The Molecular Biology of the Cell" describes and provides illustrations of our most current understanding of the chemical makeup of cells and their components. Explains in detail how electron activity keeps...
Davidson College
Davidson College: Electronic Structure of Coordination Compounds
A list of five virtual chemistry topics with Java applets on the electronic structure of coordination compounds. Covers crystal field theory, CFT energy level splitting, color in gems, the spectrochemical series, and ligand properties.
Simon Fraser University
Chem1 Virtual Textbook: Molecules and the Properties of Bonded Atoms
College-level site goes into great detail about chemical bonding properties, as far as energies, structure, angles, and length. Infrared absorption, the greenhouse effect, and global warming are addressed to exemplify bond length...
Famous Scientists
Famous Scientists: James Watson
Learn about the life and great discoveries of James Watson in this article. Learn about his most famous discovery of the molecular structure of DNA.
Florida State University
Florida State University: Molecular Expressions: Ribosomes
A defining resource for ribosomes to assist while studying cells. See an illustration of the structure and function in protein synthesis.
Other
University of Bristol: Molecule of the Month
Great site which gives the chemical structure and reactions involved in aspirin production. If you have the CHIME plug-in then it links to a better site with a 3-D model you can manipulate. OR BETTER YET, if your browser has Java, then...
Other
Bristol University: Molecule of the Month:atp
A great page for all around biochemistry and background information. Includes the molecular structure and most of the information relevant to its role in living cells.
Florida State University
Florida State University: Molecular Expressions: Making Crystals
Students will work in groups to grow crystals in different conditions, and then make conclusions about how and why crystals form. A detailed procedure and materials list, follow-up questions, and a teacher's guide that contains extension...
Famous Scientists
Famous Scientists: Francis Crick
Discover Francis Crick, British molecular biologist, physicist, and neuroscientist who jointly won a Nobel Prize for his discoveries concerning the molecular structure of nucleic acids.
Vision Learning
Visionlearning: Atomic Theory and Structure: The Mole: Its History and Use
An introduction to the mole, a unit of measurement that quantifies atoms and molecules.
Nobel Media AB
The Nobel Prize: The Nobel Prize in Physiology or Medicine 1962 Award Ceremony
Here you can find the full text of the speech, by Professor A. Engstrom, presenting the 1962 Nobel Prize in Physiology or Medicine to Maurice Wilkins, James Watson, and Francis Crick for their discovery of DNA's structure. The speech...
Davidson College
Davidson College: Network Solids: Crystalline Solids
Explains the differences between ionic, molecular, metallic, and network crystalline solids. Displays structures for diamond, graphite, fullerene, and silica, accompanied by questions about their chemical bonding. Electron density plots...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Resonance
This section from "An Introduction to Chemistry" describes how to draw resonance structures. A few examples are given. Also find links to 3-D molecular models of the examples.
PBS
Pbs Learning Media: Build a Steroid
In this interactive activity from NOVA, learn about the molecular structure of steroids. See the intermediate molecules that are part of the pathway for synthesizing cortisone from diosgenin.
Davidson College
Davidson College: Valence Shell Electron Pair Repulsion (Vsepr) Model
Presents exercises where students can check their understanding of the Valence-Shell Electron-Pair Repulsion Model by predicting what a molecular shape will be. Requires Java.
National Inventors Hall of Fame
National Inventors Hall of Fame: Carl Djerassi: Oral Contraceptives
Brief biography of the scientist who is recognized for determining organic molecular structure and the synthesis of many steroids.
Museum of Science
The Atom's Family: Mighty Molecules
In this activity, students construct models of molecules using marshmallows and gum drops.
Khan Academy
Khan Academy: Cell Cycle Checkpoints
Learn how cells use checkpoints to regulate the cell cycle. This article provides an overview of cell cycle control, outlining the factors that influence a cell's decision to pause or progress at each checkpoint.
Cosmo Learning
Cosmo Learning: Chemistry 1 A: General Chemistry
A collection of video lectures from a general chemistry course taught at the University of California, Berkeley. The course covers topics like stoichiometry, acid-base and solubility equilibrium, oxidation-reduction reactions, chemical...
Khan Academy
Khan Academy: Prokaryote Reproduction and Biotechnology
Learn how prokaryotes reproduce by binary fission, and find out the use of E. coli bacteria in molecular biology.
Khan Academy
Khan Academy: Cell Cycle Regulators
This article looks at a few of the most important core cell cycle regulators: proteins called cyclins, enzymes called Cdks, and an enzyme complex called the APC/C.
National Health Museum
Access Excellence: Linus Pauling (1901 1994)
This Access Excellence site provides a general biography of Linus Pauling, the two-time Nobel laureate who the elucidated chemical bonding, amino acid and protein structures, and the molecular basis of sickle-cell anemia.
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