Which printed times apply to Class XI?

The model paper prints 1 hour 40 minutes against the MCQ section and 1 hour 20 minutes against the descriptive section. We use the board’s printed times and flag them for confirmation each session.

Does the paper cover all fifteen units at once?

The table of specifications spreads marks across the units in the assessment framework; a single paper samples them rather than testing each.

Which grading scale applies?

The IBCC 10-point scale, A++ to U with 40% as the pass line, applies at HSSC-I from the First Annual 2026 and at HSSC-II from the First Annual 2027.

Is this official FBISE marking?

No. Federal Board of Intermediate and Secondary Education marks the real exam. This is examiner-style marking of mocks and homework for FBISE HSSC Biology. Only you see the marking, and you decide what reaches the student.

Which papers are marked?

None yet are marked question by question; Class XI: Section A, Class XII: Section A are scored instantly. Practical exams sat at the centre are not marked here.

How is the next paper chosen?

From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.

FBISE HSSC (Intermediate) Biology (XI-XII): syllabus, papers and marking

Name: FBISE HSSC (Intermediate) Biology (XI-XII) — exam-style papers and marking
Price: 5000 PKR

FBISE HSSC-I Biology on the 50% MCQ pattern across fifteen units from cells to ecology, with exact terms and labelled diagrams marked for what they earn.

National Curriculum 2022-23, Inclusive Scheme of Studies 2024 (1200 marks); 50% MCQ and 50% descriptive pattern from Second Annual 2026 · First Annual and Second Annual series · grades A++ to U (IBCC scale)

FBISE HSSC Biology: where the marks go

FBISE Biology at HSSC is examined against the Student Learning Outcomes (SLOs) of the National Curriculum 2022-23, not against a textbook. Class XI is now a 100-mark paper: an 80-question MCQ section worth 40 marks (56 straight and 24 built on a situation), a 40-mark descriptive section of seven 4-mark short answers and two 6-mark extended answers with internal choice, and 20 marks of practical-based assessment. Class XII keeps the earlier 17-MCQ, 63-mark descriptive pattern until the 50% pattern reaches it. Marks are won on the exact term, a reason attached to each described process and labelled diagrams, so loose wording is the usual leak.

AdmitPortfolio builds Biology papers to the FBISE assessment framework and table of specifications, so the MCQ and descriptive proportions, the 0.5-mark MCQ weighting and the SLO domains follow the board's own model paper. MCQ sections score automatically; descriptive answers are marked question by question as each rubric is released, and every lost mark is traced to the SLO behind it.

How we mark a real script

Paper structure and what we mark

Paper	Time	Marks	Weight	Questions
Class XI: Section A — Multiple Choice	1 h 40 min as printed	40	40%	80 MCQs at half a mark each: 56 straight and 24 built on a situation
Class XI: Sections B and C — Short and Extended Response	1 h 20 min as printed	40	40%	Section B: seven short answers of 4 marks. Section C: two extended answers of 6 marks. Internal choice in every question
Class XI: Practical — Practical-Based Assessment	Separate	20	20%	Practical-based assessment (PBA)
Class XII: Section A — Multiple Choice	25 min	17	17%	17 MCQs at one mark each (2024 model-paper pattern)
Class XII: Sections B and C — Short and Extended Response	2 h 35 min	63	63%	Section B 39 marks, Section C 24 marks (2024 model-paper pattern)
Class XII: Practical — Practical-Based Assessment	Separate	20	20%	Practical-based assessment (PBA)

Syllabus outline

Unit 1: Cell and subcellular organelles
Unit 2: Molecular biology
Unit 3: Enzymes
Unit 4: Bioenergetics
Unit 5: Acellular life
Unit 6: Prokaryotes
Unit 7: Protista and fungi
Unit 8: Plantae
Unit 9: Diversity in plant functions
Unit 10: Animalia
Unit 11: Reproduction
Unit 12: Inheritance
Unit 13: Chromosome and DNA
Unit 14: Evolution
Unit 15: Ecology

How each paper is marked here

The eighty half-mark MCQs of Class XI Section A are scored automatically, with the straight and scenario items reported separately.
Short and extended answers are marked against the SLO the question was written for, with the internal-choice option the candidate answered identified first.
The 50% MCQ pattern reaches HSSC-II from the First Annual 2027 for candidates who sat HSSC-I on it in the Second Annual 2026, and for everyone from the First Annual 2028. The Class XII rows show the 2024 model-paper pattern until then.

Where FBISE HSSC Biology candidates lose marks

Describing where an explanation is asked — Describe and explain are different tasks. A process listed without the reason it happens loses the reasoning mark.
Diagrams without labels, or labels that miss the part — Unlabelled diagrams cost marks in extended answers, and a label line must touch the structure it names.
Terms used interchangeably — Diffusion for osmosis, breathing for respiration, gene for allele: in biology the exact word is frequently the mark.
Data and scenario items answered from memory — Stem-and-data questions reward reading the information given. Recalled textbook facts tend to land on the distractor written for them.
Scenario-based MCQs answered from memory — Twenty of the sixty Section A items sit on a situation, table or diagram. Answering from recalled facts picks the distractor written for it.

Sample papers, mark schemes and marked reports for FBISE HSSC Biology

See a real handwritten script marked by eight examiners at admitportfolio.com/examiners.

Questions teachers ask

Which printed times apply to Class XI?: The model paper prints 1 hour 40 minutes against the MCQ section and 1 hour 20 minutes against the descriptive section. We use the board’s printed times and flag them for confirmation each session.
Does the paper cover all fifteen units at once?: The table of specifications spreads marks across the units in the assessment framework; a single paper samples them rather than testing each.
Which grading scale applies?: The IBCC 10-point scale, A++ to U with 40% as the pass line, applies at HSSC-I from the First Annual 2026 and at HSSC-II from the First Annual 2027.
Is this official FBISE marking?: No. Federal Board of Intermediate and Secondary Education marks the real exam. This is examiner-style marking of mocks and homework for FBISE HSSC Biology. Only you see the marking, and you decide what reaches the student.
Do you reproduce past-paper questions?: No. Every XI-XII paper here is original and written to the national curriculum 2022-23, inclusive scheme of studies 2024 (1200 marks); 50% mcq and 50% descriptive pattern from second annual 2026, in the same structure as the real papers shown above.
Which papers are marked?: None yet are marked question by question; Class XI: Section A, Class XII: Section A are scored instantly. Practical exams sat at the centre are not marked here.
How is the next paper chosen?: From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.
When are the exams?: First Annual and Second Annual series. Grades A++ to U (IBCC scale).

Other FBISE HSSC (Intermediate) courses

Start marking Biology scripts · See a real marked script