World · Bio/Biochem
Biology
Cells, organ systems and genetics, from the powerhouse of the cell on up.
0 of 39 skills started0% mastered
Unit 1 · 4 skills
Cells and Organelles
The parts list of a cell and what each part does.
Start
Cell theory and cell types
Organelle structure and function
The cytoskeleton
Cell junctions and tissues
Unit boss
Unit 2 · 4 skills
Cell Division
Mitosis, meiosis and the checkpoints in between.
Locked
The cell cycle and checkpoints
Mitosis
Meiosis
Cancer and cell cycle control
Unit boss
Unit 3 · 5 skills
Genetics and Evolution
Inheritance patterns and how populations change.
Locked
Mendelian genetics
Non-Mendelian inheritance
Linkage and recombination
Hardy-Weinberg and population genetics
Evolution and natural selection
Unit boss
Unit 4 · 3 skills
Bacteria and Viruses
Tiny organisms, huge MCAT presence.
Locked
Bacterial structure and growth
Viral structure and life cycles
Bacterial genetics and resistance
Unit boss
Unit 5 · 6 skills
Nervous and Endocrine Systems
Signals: fast electrical ones and slow chemical ones.
Locked
Neuron structure
Action potentials
Synaptic transmission
Nervous system organization
Endocrine glands and hormones
Hormone signaling mechanisms
Unit boss
Unit 6 · 5 skills
Heart, Lungs, and Immunity
Pumping, breathing and defending.
Locked
The heart and cardiac cycle
Blood vessels and pressure
Respiration and gas exchange
Innate immunity
Adaptive immunity
Unit boss
Unit 7 · 4 skills
Digestion and Kidneys
Breaking food down and filtering what's left.
Locked
The digestive tract
Digestive enzymes and absorption
Nephron function
Fluid and acid-base balance
Unit boss
Unit 8 · 4 skills
Reproduction and Development
From gametes to a whole organism.
Locked
The male reproductive system
The female reproductive cycle
Fertilization and embryogenesis
Differentiation and development
Unit boss
Unit 9 · 4 skills
Muscles, Bones, and Skin
Movement, structure and the body's outer layer.
Locked
The sliding filament model
Skeletal, cardiac and smooth muscle
Bone and cartilage
Skin and thermoregulation
Unit boss
Final boss · Timed
Biology final boss
Beat every unit boss in this world to unlock a timed mini-section.