cell.com
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Cell.com is the official site for Cell Press, hosting the flagship Cell journal and other Cell Press publications. It offers access to original research articles, reviews, editorials, and news in cell and molecular biology, with abstracts and full text available to subscribers.
More resources on Cell & Molecular Biology
khanacademy.org/science/biology
Khan Academy Biology offers free, expert-led video lessons, practice questions, and quizzes to support introductory biology learning. It covers core topics from cell biology and genetics to evolution, ecology, and physiology.
7.06x Cell Biology (MIT RES.7-007)
Cell biology of higher organisms: membranes and organelles, protein transport, receptors and signaling, the cytoskeleton and extracellular matrix, cell division and the cell cycle, and oncogenic transformation. Problem sets with solutions tie each process to the experiments that uncovered it.
PDB-101
The RCSB Protein Data Bank's education portal, built around Molecule of the Month articles, 3D structure viewers, and classroom activities. Users come away able to read protein and nucleic acid structures and connect molecular shape to biological function.
Introduction to Biology - The Secret of Life (MITx 7.00x)
Biochemistry, genetics, molecular biology, recombinant DNA, genomics and rational medicine, taught in Eric Lander's video lectures with test-yourself questions and interactive problem sets. Free to audit; learners come away able to reason about how genes and proteins explain living systems and disease.
Molecular Biology
A broad variety of topical and detailed talks on specific aspects of molecular and cellular biology, including cellular morphology and function, genome organization, genetic expression, morphogenesis, proteomics and somatic cell genetics.
iBiology Microscopy Series
This is the standard free microscopy course for life scientists. Free video course directed by Ron Vale, Nico Stuurman and Kurt Thorn. It covers optics and image formation, contrast methods, fluorescence and GFP, cameras, deconvolution, super-resolution and optical traps, through lectures, labs filmed at the microscope and an assessment for each lecture.