B.Sc Nursing - 10+2 Science Foundation Applied to Health
What this domain tests
The B.Sc Nursing (4-year) entry paper is built on the 10+2 science base: Physics, Chemistry, Biology, plus English and general awareness. Questions are usually phrased so a science fact must be applied, not merely recalled, and many items are deliberately tilted toward the human body and health.
Core rules and concepts
- Cell and human physiology: osmosis and tonicity, membrane transport, blood composition, cardiac cycle, nephron function, nerve impulse, hormone–target organ pairs.
- Biology of health: nutrition and deficiency states (iron → microcytic anaemia; iodine → goitre), immunity, basics of inheritance (dominant/recessive, sex-linked traits).
- Chemistry: mole concept and molarity, acids/bases and pH, redox, periodic trends, biomolecules (carbohydrates, proteins, lipids).
- Physics: SI units and dimensional consistency, equations of motion, work–energy, Ohm's law and simple circuits, reflection/refraction and lenses.
- English: subject–verb agreement, prepositions, tenses, synonyms/antonyms, comprehension and spotting the "except/not" instruction.
Worked example
A red blood cell is placed in 0.45% NaCl. What happens? Reasoning: 0.9% NaCl is isotonic to plasma. 0.45% contains fewer solute particles per litre, so it is hypotonic relative to the cell. Water moves by osmosis from the dilute solution into the cell, which swells and may haemolyse. Answer: swelling and possible haemolysis - not shrinkage.
Traps that cost marks
- Mixing osmosis (water across a semipermeable membrane) with diffusion (solute down a gradient).
- Reading 0.45% as "stronger" than 0.9% - compare osmolarity, never the decimal alone.
- Unit slips in numerical items: mg vs g, mL vs L, minutes vs hours.
- Answering the fact you remember rather than the fact asked - underline "not", "except", "first".