Biology
Class 9
Biology for Class 9 (Matric Part 1, Class 9), Punjab board, following the new PECTAA book: notes, key terms, solved examples, short questions and MCQs, explained in English, Urdu and Roman Urdu. Every open lesson is free. A chapter with no lesson yet says Coming soon.
Start · Biology and its branchesChapters
- Chapter 1The Science of Biology≈ 160 min
- 1.1Biology and its branchesNot startedAbout 20 minStart →
- 1.2Relation of Biology with other sciencesNot startedAbout 20 minStart →
- 1.3Careers in BiologyNot startedAbout 20 minStart →
- 1.4Quranic instructions to reveal the study of lifeNot startedAbout 20 minStart →
- 1.5Science as a collaborative fieldNot startedAbout 20 minStart →
- 1.6Scientific methodNot startedAbout 20 minStart →
- 1.7Theory and law (principle)Not startedAbout 20 minStart →
- 1.8Malaria: an example of biological methodNot startedAbout 20 minStart →
- Chapter 2BiodiversityComing soon
- Chapter 3The CellComing soon
- Chapter 4BiomoleculesComing soon
- Chapter 5Metabolism and EnzymesComing soon
- Chapter 6BioenergeticsComing soon
- Chapter 7Nutrition in PlantsComing soon
- Chapter 8Transport in PlantsComing soon
- Chapter 9Reproduction in PlantsComing soon
A taste of the free chapter
1.1 Biology and its branches: one science of life, many ways to look
Biology = bios (life) + logos (study). Three main fields: Zoology, Botany, Microbiology. Each branch is named after what it studies.
Try one MCQ
Which branch focuses on the structure and function of cells? (Exercise A Q1)
- (a) Cytology
- (b) Microbiology
- (c) Histology
- (d) Ecology
Show answer
(a) Cytology is the study of cells, the building blocks of life.
How every lesson works
- Read: the problem first, then the one rule that solves it.
- Key terms: four ideas the board asks about, each with a “why”.
- Try it: an interactive you can play with, and a question you answer on screen.
- Model answers: board-style questions solved line by line.
- Common mistakes: the traps that cost marks every year.
- MCQs: five questions, each with the reason behind the answer.
- Quick revision: three points to remember before the exam.
What comes next
- Every chapter of all 7 subjects of your year: Chemistry, Physics, Biology, Maths, Computer Science, English and Urdu.
- Notes, model answers, common mistakes and MCQs for every lesson.
- Every step in English, Urdu and Roman Urdu; switch any time.
- More chapters of the new PECTAA books, added one by one as each is checked against the book.
Every open lesson is free. The rest is coming soon.
More chapters: coming soon
One book, all nine Punjab boards
The same Punjab textbook is used by the boards of Lahore, Rawalpindi, Gujranwala, Faisalabad, Multan, Sargodha, Bahawalpur, Dera Ghazi Khan, Sahiwal. These notes fit your board too.
Questions students ask
- Are the lessons really free?
- Yes. Every lesson that is open is free for everyone, with all its notes, model answers and MCQs. No sign-up needed to read it.
- What about the other chapters?
- They are listed in the order of the new PECTAA book and say Coming soon. We add them one by one, each checked against the book.
- Does it match my board?
- Yes. All nine Punjab boards use the same Punjab textbook, so the chapters, questions and MCQs here fit Lahore, Rawalpindi, Multan and every other Punjab board.
- Can I study in Urdu?
- Yes. Every explanation is in English, Urdu and Roman Urdu. Science terms stay in English, as they appear in your exam paper.