Biology
The cell and everything it does: its chemistry, its division, its genetics, and the microbes and immunity around it.
Foundations of Biology
Start with the scientific method, the chemistry of water, and homeostasis.
- 01Scientific method and taxonomyFree lesson
- 02The chemistry of water
- 03Homeostasis
Cell Biology
LockedLearn the organelles, how the membrane moves things, and how cells make energy.
- 01Cell structure and organelles
- 02The cell membrane and transport
- 03Respiration and photosynthesis
Cell Division and Genetics
LockedFollow mitosis and meiosis, then predict inheritance with Punnett squares.
- 01The cell cycle and mitosis
- 02Meiosis and reproduction
- 03Genetics and Punnett squares
Molecular Biology
LockedSee how DNA copies itself and how a gene becomes a protein.
- 01DNA, RNA and replication
- 02Protein synthesis
Microbiology and Immunity
LockedMeet the pathogens that cause disease and the immune system that answers them.
- 01Pathogens and infectious disease
- 02The immune system
Ready to practise it?
Reading is good. Practising is better. Drill this subject with free HESI A2 Biology practice questions, then sit the free full-length HESI A2 practice test to see your percentage under exam timing.