Microbiology
By Dr. Akash Garg, DC, MS Pharmacology, MEd, MBA · Updated October 20, 2026
Microbes, infection and immunity. Free to read, practice and play, with no sign-up.
15chapters
14animated modules
75interactives
See It: Microbiology
Start watchingWatch it happen
See microbiology happen. 14 animated walkthroughs, each with a hands-on lab. Pause, slow down or have it read aloud.
- 1Microscopy, staining and the microbial world
- 2Prokaryotic and eukaryotic cell structure
- 3Viruses, viroids and prions
- 4Microbial metabolism
- 5Microbial growth
- 6Microbial genetics and biotechnology
- 7Controlling microbial growth
- 8Antimicrobial drugs and resistance
- 9Disease, virulence and epidemiology
- 10Innate immunity
- 11Adaptive immunity, vaccines and diagnostics
- 12Skin, eye and respiratory infections
- 13Urogenital and nervous system infections
- 14Digestive, blood and lymphatic infections
Study tools
Play
On the wayMicrobiologyMicroQuestSeven pathogen kingdoms. Master 140 microbiology questions under the lens.Advertisement
Chapters
- 1The Microbial World & Why It Matters to NursingThe microbes, the microbiome, infection vs colonization, germ theory & naming
- 2Microscopy, Staining & the Microbiology LabMicroscopes, the Gram stain, and how specimens become answers
- 3Prokaryotic vs Eukaryotic CellsBacterial cell structure, the cell wall, and how it compares to our cells
- 4Bacterial Diversity & ClassificationShapes, arrangements, Gram groups, and the clinically important bacteria
- 5Viruses, Fungi & ParasitesAcellular viruses, the fungi, protozoa, and the helminths
- 6Microbial Growth & MetabolismNutrition, oxygen, the growth curve, and culturing microbes
- 7Microbial Genetics & How Resistance SpreadsDNA, mutation, and horizontal gene transfer of resistance
- 8Controlling Microbes — Sterilization, Disinfection & AsepsisPhysical & chemical control, and aseptic technique at the bedside
Show all 15 chapters
- 9Antimicrobial DrugsClasses, mechanisms, spectrum, resistance & stewardship
- 10How Microbes Cause DiseaseVirulence factors, toxins, and the stages of infection
- 11Infection & EpidemiologyThe chain of infection, transmission, outbreaks & HAIs
- 12Innate ImmunityBarriers, phagocytes, inflammation, fever & complement
- 13Adaptive Immunity & ImmunizationT & B cells, antibodies, memory, and how vaccines work
- 14Immune DisordersHypersensitivity, autoimmunity & immunodeficiency
- 15Infectious Diseases by Body SystemA clinical tour — respiratory, GI, urogenital, skin, blood & CNS
Written by Dr. Akash Garg
Doctor of Chiropractic, MS in Pharmacology, MEd and MBA. Teaching college science since 2007.