1st Year (Class 11) Biology students under the Punjab boards can now plan their 2025 exam preparation with the official pairing scheme. It applies to BISE Lahore, Rawalpindi, Faisalabad, Sargodha, Gujranwala, Sahiwal, Multan, Bahawalpur, and Dera Ghazi Khan, plus the Azad Kashmir board, and breaks down how the 85-mark theory paper is distributed across chapters 1 to 14.
Intermediate Biology is content-heavy, so chapter weightage really matters. This scheme shows which chapters give the most MCQs, how the short questions are grouped across Questions 2, 3 and 4, and which chapters pair up in the five long questions — so you can prioritise your revision.
Quick Facts
- Class: 11th (1st Year)
- Subject: Biology
- Year: 2025 (Updated 6th February 2025)
- Boards: All Punjab Boards + Azad Kashmir (AJK)
- Total Theory Marks: 85 (MCQs 17 + Short 44 + Long 24)
- Format: PDF
Exam Pattern Breakdown
MCQs — 17 Marks
| Chapter | MCQs | Chapter | MCQs | Chapter | MCQs |
|---|---|---|---|---|---|
| 1 | 1 | 6 | 1 | 11 | 2 |
| 2 | 1 | 7 | 1 | 12 | 1 |
| 3 | 1 | 8 | 1 | 13 | 1 |
| 4 | 1 | 9 | 1 | 14 | 2 |
| 5 | 1 | 10 | 2 |
The 17 MCQs are distributed across all 14 chapters as shown.
Short Questions — 44 Marks
| Q.2 – Chapter | Qs | Q.3 – Chapter | Qs | Q.4 – Chapter | Qs |
|---|---|---|---|---|---|
| 2 | 1 | 1 | 2 | 5 | 1 |
| 3 | 3 | 4 | 2 | 6 | 1 |
| 8 | 2 | 7 | 4 | 12 | 3 |
| 10 | 4 | 9 | 2 | 13 | 4 |
| 11 | 2 | 14 | 2 |
Attempt rules differ by question: Q.2 and Q.3 — attempt any 8 of the 12 offered in each; Q.4 — attempt any 6 of the 9 offered. Qs = number of questions offered from that chapter.
Long Questions — 24 Marks (Attempt 3 out of 5)
| Q.5 | Q.6 | Q.7 | Q.8 | Q.9 |
|---|---|---|---|---|
| (a) Ch 1 (b) Ch 14 | (a) Ch 2 (b) Ch 8 | (a) Ch 6 (b) Ch 9 | (a) Ch 5 (b) Ch 11 | (a) Ch 4 (b) Ch 12 |
Attempt any 3 of the 5 long questions. Each has parts (a) and (b) from the chapters shown. Q.7(b) from Chapter 9 excludes the flower families. Parts test Knowledge (K), Understanding (U) or Application (A) depending on the question.
Important Things to Know
- Questions 2 and 3 each offer 12 short questions (attempt any 8), while Question 4 offers 9 (attempt any 6).
- In the long questions, Q.7(b) from Chapter 9 excludes the flower families — note the exclusion when revising.
- The 2025 paper follows the SLO-based pattern, so it differs a little from older papers; even so, roughly 90% of this scheme is expected to hold.
- This scheme is built around Punjab boards. Prepare all chapters fully rather than relying on the scheme alone.
Download
Click below to download the free 2025 Biology Pairing Scheme PDF for 1st Year, Punjab Boards.
Who Should Use This Pairing Scheme
1st Year (Class 11) students appearing in the 2025 Biology exam under any Punjab board or the Azad Kashmir board — regular college students and private candidates both.
Applicable Boards
Issued for all Punjab boards: Lahore, Rawalpindi, Faisalabad, Sargodha, Gujranwala, Sahiwal, Multan, Bahawalpur, and Dera Ghazi Khan. It also applies to the Azad Kashmir (AJK) board, which follows a similar paper pattern for Biology.
FAQs
Is this pairing scheme official for 1st Year Biology 2025?
Yes, it reflects the pairing pattern issued for Punjab boards and AJK for the 2025 exams.
Why do the short questions have different attempt rules?
Questions 2 and 3 each offer 12 short questions (attempt any 8), while Question 4 offers 9 (attempt any 6).
Can students from other boards use it?
It is built for Punjab boards and AJK. Students from other boards should check their own board’s scheme.
Does the download include solved exercises?
No — this is the pairing (assessment) scheme only. It shows the marks distribution, not solved answers.
Note: pairing schemes are exam guidance, not a guaranteed paper pattern. Full details: freebooks.pk/disclaimer
Study Resources for Biology 1st Year
Free exam-preparation resources for Biology 1st Year from the Freebooks.pk Editorial Team — the free PDF textbook. Study online or download.