Class 11 Biology Half-Yearly Sample Papers with Solutions Set 15| 2026–27

Artham Resources | Class 11 Biology Half-Yearly Sample Paper with Solutions (Set 15)

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

Complete your mid-term medical and life sciences evaluation series with this definitive capstone assessment for Class 11 Biology. Engineered strictly according to the latest CBSE guidelines, 70-mark theory blueprint, and rationalized NCERT curriculum, this fifteenth mock paper serves as the ultimate benchmark—testing comprehensive mastery across botanical taxonomy, zoological classification, tissue histology, cellular ultrastructure, biomolecular energetics, and cell-division genetics under authentic 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 foundational mid-term units—Diversity in the Living World (taxonomic hierarchy, biological classification criteria, lichens and mycorrhizae, alternation of generations in cryptogams vs. phanerogams, and diagnostic organ systems of Annelida, Arthropoda, Echinodermata, and Chordata), Structural Organisation in Animals and Plants (monocot vs. dicot root and stem internal anatomy, secondary growth via vascular and cork cambium, floral diagrams with complete floral formulas, and histology of epithelial, muscular, and connective tissues), and Cell Structure and Function (membrane fluidity models, endomembrane system trafficking, semi-autonomous organelles, Watson-Crick DNA architecture, enzyme kinetics under competitive/non-competitive inhibition, and chromosomal disjunction across meiosis I and II).

• 50% Competency-Focused Mandate: Packed with application-heavy questions requiring interpretation of Michaelis-Menten enzyme curves, cell-cycle checkpoint transitions ($G_1$, $S$, $G_2$, $M$ phase dynamics), floral diagram deductions, cladistic phylogenetic matrices, and real-world case studies analyzing cellular metabolic disorders and mitochondrial cytopathies.

• Complete Step-by-Step Marking Scheme: Delivers explicit step-wise evaluation rubrics detailing precise biological keyword credit ($1/2$ mark per mandatory technical 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.