Class 11 Biology notes and question bank — NEB Exam
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Biology

Class 11 - 10 Chapters

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Class 11 Biology Notes PDF (Chapter-Wise)

Class 11 Biology notes, important questions and syllabus for NEB exam preparation. Browse chapter-wise notes and past question papers for Biology, all aligned with the NEB curriculum for Class 11 students.

Botany

5 Chapters

Unit 1: Biomolecules and cell biology (Botany)

Unit 2: Floral diversity (Botany)

Unit 3: Introductory microbiology (Botany)

Unit 4: Ecology (Botany)

Unit 5: Vegetation (Botany)

Zoology

5 Chapters

Unit 1: Introduction to biology (Zoology)

Unit 2: Evolutionary biology (Zoology)

Unit 3: Faunal diversity (Zoology)

Unit 4: Biota and environment (Zoology)

Unit 5: Conservation biology (Zoology)

About Class 11 Biology

This page brings together everything you need for Class 11 Biology under the NEB curriculum — chapter-wise notes, downloadable PDF notes, important questions with solutions and past board questions, all organised the way the syllabus is taught. Open any chapter above to read its notes online or grab the PDF, then work through the important questions for that topic.

Whether you are revising for the Class 11 Biology board exam, catching up on a chapter you missed, or looking for model questions and old NEB papers to practise with, start with the chapter notes above and use the question bank to test yourself. New notes, PDFs and questions are added regularly as the Biology syllabus is covered.