Topic Hub
Cell Biology
The cell as the basic unit of life — its membranes, organelles, cytoskeleton, signalling networks, genome, and metabolism. Each organelle gets its own graduate-level course on this site.
15 courses
Organelles & Cellular Biophysics →
Compartmentalisation, membrane biophysics, the nucleus, ER, mitochondria, lysosomes, peroxisomes, and integrated cell function.
Cell Physiology →
Membrane transport, bioenergetics, signalling, muscle, neurophysiology, epithelial transport, calcium, and cell volume regulation.
Cytoskeleton →
Actin, microtubules, intermediate filaments, motor proteins, polymer dynamics, cell-shape mechanics, muscle contraction, and disease.
Mitochondria →
Bioenergetics, the electron transport chain, ATP synthase, mitochondrial dynamics, biogenesis, and disease across cellular and systems levels.
Lysosome →
V-ATPase, hydrolases, autophagy, lysosomal storage disorders, mTORC1 signalling, and the lysosome’s role in cellular homeostasis.
Golgi Apparatus →
Cisternal architecture, COPI/COPII trafficking, glycosylation, sorting at the TGN, mitotic disassembly, and Golgi-related disease.
Ribosome →
Ribosome architecture, translation initiation–elongation–termination, the peptidyl-transferase reaction, antibiotics, and ribosomal diseases.
Endoplasmic Reticulum →
ER architecture, protein folding and translocation, the unfolded protein response, ER–membrane contacts, lipid synthesis, and disease.
Stem Cells →
Stem-cell biology from embryonic and induced pluripotent cells through tissue-specific stem cells, niche signalling, and regenerative medicine.
Molecular Biology →
DNA structure and replication, transcription, translation, gene regulation, and modern molecular methods.
Metabolism →
Glycolysis, TCA cycle, oxidative phosphorylation, lipid and amino acid metabolism, and integrated metabolic regulation.
Circadian Clocks →
Molecular clockwork, central and peripheral oscillators, light entrainment, the cell cycle, metabolism, sleep and chronotherapy.
Bacteria →
Bacterial architecture, cell wall (Gram +/−), genetics and operons, flagellar motility and chemotaxis, biofilms, antibiotics and resistance, the microbiome, and pathogenesis.
Virus →
Viral structure and capsids, the Baltimore classification, attachment-entry-replication-assembly-release, RNA and DNA viruses, bacteriophages, vaccines, antivirals, and viral evolution.
Bioinformatics →
Sequence alignment, genome assembly, phylogenetics, transcriptomics, structural prediction, and statistical methods for biological big data.