NCERT-aligned study notes for Class 11 Biology covering 'The Cell: The Unit of Life', a core chapter in the 11th grade curriculum. The notes cover cell introduction, cell theory and discovery, prokaryotic vs eukaryotic cells, cell structure, plasma membrane, and transport mechanisms, with comparison tables and labelled diagrams. Ideal for NEET revision and exam preparation - well-organized with MCQ practice questions and clear explanations of complex concepts.