NCERT Exemplar Solutions for Class 11 Biology Chapter 7 Structural Organisation in Animals
The NCERT Exemplar for Class 11 Biology Chapter 7, Structural Organisation in Animals, is a crucial study aid for understanding the internal and external organization of animals. This chapter goes beyond basic zoology and provides detailed insights into tissues, organ systems, and the body plans of representative organisms. The NCERT Exemplar questions help students sharpen their conceptual clarity and develop application-based problem-solving skills, which are essential for both board exams and competitive exams like NEET. The chapter starts with a study of animal tissues, which are categorized into four types: epithelial, connective, muscular, and nervous. Each tissue has distinct structures and functions. For example, epithelial tissues form protective layers, connective tissues provide support, muscular tissues enable movement, and nervous tissues coordinate responses. Exemplar questions often test students’ ability to differentiate between tissue types, recognize their locations, and explain their functional roles. The next part of the chapter focuses on the morphology and anatomy of earthworms, cockroaches, and frogs, which serve as representative examples of invertebrates and vertebrates.
Earthworm is studied for its cylindrical, segmented body covered in cuticle. Important systems such as the alimentary canal, circulatory system, and reproductive organs are described. Exemplar questions may ask students to identify nephridia for excretion or explain the closed circulatory system of earthworms.
Cockroach is another key organism. Its body is divided into head, thorax, and abdomen, with three pairs of legs and two pairs of wings. Exemplar questions test understanding of its digestive system, tracheal respiration, compound eyes, and reproductive organs. Questions often focus on adaptations that make cockroaches successful survivors in diverse environments.
Frog, representing amphibians, is studied for its distinct body divisions—head and trunk—along with smooth, moist skin adapted for cutaneous respiration. Exemplar problems cover its digestive, circulatory, respiratory, excretory, and reproductive systems. Students may also be asked to compare features of frogs with other vertebrates, making this section particularly important for competitive exams.
The NCERT Exemplar problems for this chapter are diverse, including multiple-choice questions, reasoning-based problems, and diagram-based exercises. For instance, students may be asked to match tissues with their functions, label diagrams of animal systems, or analyze structural adaptations of different organisms. These questions ensure that learners not only recall facts but also apply knowledge in problem-solving situations. To prepare well, students should carefully study the NCERT textbook diagrams and tables since many Exemplar questions are based on visual understanding. Once the basic concepts are clear, solving Exemplar problems enhances retention and helps students gain confidence in applying their learning. In conclusion, NCERT Exemplar Solutions for Class 11 Biology Chapter 7 Structural Organisation in Animals is an important resource that bridges theoretical knowledge with practical application. By practicing these questions, students can strengthen their understanding of animal tissues and organ systems, while also preparing effectively for board and entrance examinations.