Study Chapter Details

UP Board Class 11 Biology – Structural Organisation in Animals

The chapter “Structural Organisation in Animals” in UP Board Class 11 Biology focuses on the levels of structural complexity in animals. It explains how cells form tissues, tissues form organs, organs form organ systems, and organ systems coordinate to maintain homeostasis.



Students learn about the types of animal tissuesepithelial, connective, muscular, and nervous tissues—and their specific functions. The chapter also introduces the concept of organ systems such as the circulatory, respiratory, digestive, excretory, and nervous systems, explaining their structure and role in maintaining the life processes.

Additionally, the chapter covers coelom, body symmetry, and body cavity types (acoelomate, pseudocoelomate, coelomate), giving students an understanding of animal organization and complexity.

This chapter forms a foundation for advanced studies in zoology, physiology, and comparative anatomy, helping students identify patterns of organization across invertebrates and vertebrates, which is crucial for exams like UP Board, NEET and CUET.