Welcome to the NCERT Solutions for Class 11 Biology - Chapter Structural Organisation in Animals. This page offers a step-by-step solution to the specific question from Exercise 1, Question 9: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
(a)
|
Simple epithelium |
Compound epithelium |
|
1. It is composed of only one layer of cells. 2. It is mainly involved in the function of absorption and secretion. 3. It is present in the lining of the stomach, intestine. |
1. It is composed of many layers of cells. 2. It is mainly involved in the function of protection 3. It is present in the lining of the pharynx and buccal cavity. |
(b)
|
Cardiac muscles |
Striated muscles |
|
1. They are involuntary in function. 2. They are multi-nucleated and branched. 3. They are found only in the heart. |
1. They are voluntary in function. 2. They are multi-nucleated and un branched. 3. They are found in triceps, biceps, and limbs. |
(c)
|
Dense regular connective tissues |
Dense irregular connective tissues |
|
1. In dense regular connective tissues, collagen fibres are present in rows between parallel bundles of fibres. 2. They are present in tendons and ligaments. |
1. In dense irregular connective tissues, fibres are arranged irregularly. 2. They are present in the skin. |
(d)
|
Adipose tissue |
Blood tissue |
|
1. It is composed of collagen fibres, elastin fibres, fibroblasts, macrophages, and adipociytes. 2. It helps in the synthesis, storage, and metabolism of fats. 3. It is present beneath the skin. |
1. It is composed of RBCs, WBCs, platelets, and plasma. 2. It helps in the transportation of food, wastes, gases, and hormones. 3. It is present in the blood vessels. |
(e)
|
Simple glands |
Compound glands |
|
1. They contain isolated glandular cells. 2. They are unicellular. 3. Examples include goblet cells of the alimentary canal. |
1. They contain a cluster of secretory cells. 2. They are multicellular. 3. Examples include salivary glands. |
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