Question

E. Answer the following questions in detail.
1. What are tissues? Give importance of tissue.
2. What is epithelial tissue? Explain its various types. 2
3. What are tendons and ligaments? Differentiate between the two.​

Answer 1

Answer:

Animal Tissues

→ Epithelial Tissue and its Types

→ Connective Tissue and its Types

→ Muscular Tissue and its Types

→ Nervous Tissue

Also Check: CBSE Class 9 Science Syllabus 2021-22

Key notes for Chapter- Tissues are:

Animal Tissues

→ Animals move around in search of food, mates and shelter.

→ Most of the tissues they contain are living.

→ The structural organisation of organs and organ systems is far more specialised and localised in animals than in plants.

Explanation:

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Answer 2

Answer:

1.Tissue is a group of cells that have similar structure and that function together as a unit.Tissue provide structural strength, mechanical strength and show division of labour.

2.Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.There are three principal classifications associated with epithelial cells. Squamous epithelium has cells that are wider than they are tall. Cuboidal epithelium has cells whose height and width are approximately the same. Columnar epithelium has cells taller than they are wide.

3.A tendon is a fibrous connective tissue which attaches muscle to bone.A ligament is a fibrous connective tissue which attaches bone to bone.Tendons are cord-like structures that transmit muscular force to a bone. On the contrary, ligaments are the structures that connect a bone to a bone.

Explanation:

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