Biology is half of NET-Applied Sciences, about 100 of the 200 questions, which makes it the largest single subject on that paper. Most biology MCQs test recall of a term, a structure or a cause, so the way to score is to cover the human physiology and cell biology chapters thoroughly and answer recall items fast enough to bank time for chemistry.
Key facts
- NET-Applied Sciences is Biology 50%, Chemistry 30%, English 20%
- About 100 biology questions is derived from the 200-MCQ total. NUST publishes percentages only
- 200 MCQs in 180 minutes, no negative marking
- Our bank has 2,480 biology MCQs across 19 chapters
Source: NUST, Subjects included in NET with weightings, checked October 2026. Bank counts from the SailToNUST question bank.
What the biology section covers
The syllabus follows HSSC Part-I and Part-II biology. Our syllabus page lists 25 chapters. Nineteen have MCQs in our bank. The six without are newer National Curriculum chapters: structural and computational biology, the urinary system, immunity, biostatistics, pharmacology and evolution. Read those from the textbook until bank questions land.
Biology is the subject where you can go fastest. A recall question takes 15 to 30 seconds if you know it. That spare time matters, because chemistry numericals on the same paper often need more than a minute.
Chapters by block
The table groups the chapters the way they hang together. Counts are what our bank holds, which tells you where you can drill. They are not NUST's exam frequencies.
| Block | Chapter | MCQs in our bank |
|---|---|---|
| Human physiology | Skeletal and muscular systems | 210 |
| Human physiology | Circulatory system | 169 |
| Human physiology | Reproductive system | 158 |
| Human physiology | Thermoregulation and osmoregulation | 148 |
| Human physiology | Nervous system | 129 |
| Human physiology | Digestive system | 105 |
| Human physiology | Respiratory system | 61 |
| Human physiology | Endocrine system | 37 |
| Cell and molecular | Cells and subcellular organelles | 122 |
| Cell and molecular | Chromosome and DNA | 103 |
| Cell and molecular | Molecular biology | 100 |
| Cell and molecular | Bioenergetics | 85 |
| Cell and molecular | Enzymes | 52 |
| Cell and molecular | Biotechnology | 52 |
| Genetics | Inheritance | 120 |
| Diversity | Biodiversity and classification | 515 |
| Diversity | Bacteria and viruses | 77 |
| Environment | Ecology | 217 |
| Plants | Plant physiology | 20 |
Which chapters to do first
NUST does not publish chapter weights, so this order is our judgement from the syllabus.
Human physiology first. It is eight chapters of the syllabus, more than any other block, and the chapters share vocabulary. Once you know how the heart, kidney and nervous system work, the endocrine and reproductive chapters go faster.
Cell and molecular biology second. Organelles, enzymes, respiration and photosynthesis, DNA replication, transcription and translation. These ideas come back inside physiology and biotechnology questions.
Inheritance third. Genetics is the one place in biology where you calculate. Crosses, ratios and pedigrees are reliable marks once you have done 30 of them.
Classification last, but do not skip it. Biodiversity and classification is the largest set in our bank, and it is pure fact. Learn the kingdom and phylum features in a table instead of memorising every example.
The question shapes you will see
Name the term. "The mechanism that keeps the internal environment within set limits is called?" Homeostasis. Many stems end in a blank and the options are lookalike words.
Structure and feature. "The gelatinous layer between ectoderm and endoderm in cnidarians is?" Mesoglea. "Around each thick myosin filament, how many thin filaments sit?" Six.
Disease and cause. "Typhoid is caused by?" Salmonella, a bacterium. "Vitamin A deficiency causes?" Night blindness.
Genetics. "Red-green colour blindness is inherited as?" An X-linked recessive trait. Cross questions ask for a ratio: Aa × Aa gives 3:1 by phenotype and 1:2:1 by genotype.
Process names. "Secretion of waste from the blood straight into the filtrate by active transport is?" Tubular secretion. "Breaking kidney stones with shock waves is?" Lithotripsy.
Speed tactics for biology
Read the options before you think. Recall stems are short. If you know the term, you will see it at once. If you do not, the options often remind you.
Watch lookalike spellings. Options like lithotripsy, lithotropy and lithotracy test whether you know the exact word. Learn spellings for the terms you meet in the bank.
Treat "all of the above" with care. Check two options. If both are true, "all of the above" is likely right. If one is false, strike it and the "all" option together.
Spend saved seconds on chemistry. If biology runs at 35 seconds a question, 100 questions take under an hour, which leaves more time for the chemistry numericals.
How to practise biology for NET
Read the chapter once with the textbook diagrams open. Then build a one-page table for it: organ or structure, function, the disorder that goes with it. Drill 40 to 60 bank MCQs and add every miss to the table.
Review the tables in short daily sessions rather than one long one. Biology recall fades fast, and a five-minute daily pass keeps 25 chapters alive.
Chemistry is the other science on this paper, and it needs a different method. The NET chemistry guide covers it. If you are coming from Pre-Medical and are not sure which programmes and papers are open to you, read pre-medical and ICS students at NUST.
FAQ
How many biology MCQs are in NET?
Biology is 50% of NET-Applied Sciences, so about 100 of 200 questions. NUST publishes the percentage, and the count is derived.
Is biology in NET Engineering?
No. NET-Engineering is mathematics, physics and English. Biology is only on NET-Applied Sciences.
Which biology chapters are most important for NET?
Start with human physiology and cell and molecular biology, then inheritance. NUST does not publish chapter weights, so this is a study order, not a forecast.
Can pre-medical students apply for engineering at NUST?
Yes, through NET-Engineering, not Applied Sciences. NUST's weightings page says Pre-Medical candidates admitted to engineering without additional maths must clear an 8-week condensed mathematics course before admission.




