TEAS 7 section
Science
Human anatomy & physiology, biology, chemistry, and scientific reasoning — the largest TEAS section and the one nursing programs weight most.
- 50 questions (44 scored)
- 60 minutes
- 42 lessons
- 372 published practice questions
Human Anatomy & Physiology
18 scored QsFoundations of A&P
- Anatomical Terminology, Planes & DirectionsSpeak anatomy: directional terms, body planes, and regions — the vocabulary every other A&P topic is written in.
- Levels of Organization & Body CavitiesFrom cell to organism: the levels of structural organization, the four tissue types, and the cavities that house the organs.
- Homeostasis & Feedback LoopsHow the body holds its set points: negative feedback as the ruling mechanism, positive feedback as the rare exception.
Cardiovascular & Blood
- Heart Structure & the Path of BloodChambers, valves, and the one-way route blood takes through the heart, lungs, and out to the body.
- Blood Vessels & CirculationArteries, veins, and capillaries — their structure, their jobs, and how pressure and exchange differ across the vascular tree.
- Blood Components & FunctionWhat blood is made of and what each part does: plasma, red cells, white cells, platelets — plus blood types at TEAS depth.
Respiratory
- Respiratory Structures & Gas ExchangeFollow air from nose to alveolus and understand how oxygen and carbon dioxide trade places across the respiratory membrane.
- Ventilation & Breathing MechanicsThe pressure story of breathing: diaphragm and intercostals, volume changes, and how the brainstem sets the rhythm.
Digestive
- The Digestive TractThe alimentary canal organ by organ — what happens to food mechanically and chemically at each stop from mouth to anus.
- Liver, Pancreas & GallbladderThe accessory organs that make digestion work: bile from the liver, enzymes and bicarbonate from the pancreas, storage in the gallbladder.
Nervous
Endocrine
Urinary
Musculoskeletal & Skin
- The Skeletal SystemBones as living tissue: skeleton organization, bone structure, joints, and the marrow and mineral jobs bones do quietly.
- The Muscular SystemThe three muscle types, how skeletal muscle contracts, and the naming logic behind the major muscles.
- The Integumentary SystemSkin as an organ: its layers, accessory structures, and its roles in protection, temperature, and vitamin D.
Immune & Lymphatic
Reproductive
Biology
9 scored QsCells
- Cell Structure & OrganellesThe parts list of the cell — each organelle, its job, and the differences between prokaryotic and eukaryotic cells.
- Cell Membrane & TransportHow things get in and out of cells: diffusion, osmosis, facilitated and active transport — and what tonicity does to a cell.
- Cell Division: Mitosis & MeiosisTwo ways cells divide and why they differ: identical copies for growth and repair vs. gametes with half the chromosomes.
Molecules & Energy
- Biological MacromoleculesThe four molecule families of life — carbohydrates, lipids, proteins, nucleic acids — their building blocks and their jobs.
- Cellular Respiration & PhotosynthesisHow cells make ATP from glucose — aerobically and anaerobically — and the photosynthesis reaction that produces the glucose to begin with.
Genetics
Chemistry
8 scored QsMatter & Atoms
Bonds & Reactions
- Chemical BondsWhy atoms stick together: ionic, covalent, and hydrogen bonds, and how electronegativity decides which forms.
- Chemical Reactions & Balancing EquationsRead and balance chemical equations, classify reaction types, and apply conservation of mass.
- Reaction Rates, Catalysts & EnzymesWhat speeds a reaction up — temperature, concentration, surface area, catalysts — and enzymes as biology's catalysts.
Solutions & Water
- Solutions, Solubility & ConcentrationSolutes, solvents, and how much dissolves: concentration language and the factors that change solubility.
- Acids, Bases & pHThe pH scale and what makes something acidic or basic — with the physiologic buffers preview that pays off in nursing school.
- Properties of WaterWhy life runs on water: polarity, cohesion, adhesion, heat capacity, and water as the universal solvent.
Scientific Reasoning
9 scored QsExperimental Design
Data & Tools
Study the Science section in order, start to finish.
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