Class 11 Biology Half-Yearly Sample Papers with Solutions Set 13| 2026–27

Artham Resources | Class 11 Biology Half-Yearly Sample Paper with Solutions (Set 13)

Strictly Aligned with CBSE Board Pattern & New NCERT Curriculum 2026–27

Refine advanced analytical accuracy, master high-weightage anatomical and histological distinctions, and eliminate subtle cytological and taxonomic errors with this thirteenth board-standard practice assessment for Class 11 Biology. Engineered strictly according to the latest CBSE guidelines, 70-mark theory blueprint, and rationalized NCERT curriculum, this full-length mock paper enables senior secondary students to test their analytical grasp of cellular energetics, plant histology, animal taxonomy, and cell division mechanisms under timed examination conditions.

Key Highlights & Academic Features

• 100% Latest Blueprint (70 Marks Theory): Structured systematically across all 5 official CBSE sections: Section A (16 MCQs including 4 Assertion-Reasoning items, 1 mark each), Section B (5 Very Short Answer questions, 2 marks each), Section C (7 Short Answer questions, 3 marks each), Section D (2 Case-Based / Data-Integrated questions with sub-parts, 4 marks each), and Section E (3 Long Answer questions with internal choices, 5 marks each).

• Comprehensive Half-Yearly Syllabus Coverage: Full-spectrum assessment spanning core foundational units—Diversity in the Living World (Kingdom Fungi class characteristics, dinoflagellates vs. euglenoids, pteridophyte heterospory and seed habit precursors, and chordate vs. non-chordate structural traits), Structural Organisation in Animals and Plants (periderm formation and lenticels, secondary growth in dicot stems, floral diagrams with floral formulas for Solanaceae and Liliaceae, and dense regular vs. irregular connective tissues), and Cell Structure and Function (structure of ribosomes, semi-autonomous organelles, fluid mosaic membrane transport dynamics, protein quaternary conformations, and chromosomal disjunction in anaphase I vs. anaphase II).

• 50% Competency-Focused Mandate: Packed with application-heavy questions requiring interpretation of cell division stage micrographs, DNA content and chromosome number variation across cell cycle phases ($G_1$, $S$, $G_2$, $M$), enzyme inhibition curves under varying substrate concentrations, and contextual clinical case studies analyzing mitochondrial cytopathies and lysosomal storage disorders.

• Complete Step-by-Step Marking Scheme: Delivers explicit step-wise evaluation rubrics detailing precise biological keyword credit ($1/2$ mark per essential term), line diagram mark allocations, accurate binomial formatting rules, and point-by-point tabular contrasts.

• Timed 3-Hour Exam Simulation: Calibrated to train life-science students in balancing rapid, accurate objective decision-making in Section A with meticulous, labeled anatomical and cytological diagrams in Sections C, D, and E.