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प्रश्न
Give four important functions of epithelial tissue. Name one specific place in the body where each function is carried out.
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उत्तर
Functions of epithelial tissue:
- The cells of the body surface (i.e., epidermis) form the outer layer of skin. These cells protect the underlying cells from drying, injury, and chemical effects. They also protect the body from viral or bacterial infection.
- Inside the body, epithelial cells form lining of mouth and alimentary canal and protect these organs.
- Epithelial tissues help in absorption of water and nutrients.
- Epithelial tissues help in elimination of waste products.
- Some epithelial tissues perform secretory function. They secrete a variety of substances such as sweat, saliva (mucus), enzymes, etc.
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संबंधित प्रश्न
Fluid connective tissue of humans is ______.
Match the items given is column A with those given in column B:
| Column A | Column B |
| (1) Fibrous connective tissue | (a) blood |
| (2) Fluid connective tissue | (b) cartilage |
| (3) Supportive connective tissue | (c) Supportive connective tissue another bone. |
| (4) Ligament | (d) areolar tissue |
| (5) Tendon | (e) connects a muscle with a bone. |
Fill in the blank
........................ connects one bone to another.
Write true or false of the statement. Rewrite the false statement correctly.
The fluid-filled spaces in which cartilage cells are present are called lacunae.
Define the term of population
Define the term of the biotic community
Write a short answer
What is an ecosystem?
Answer in detail.
Explain the lower levels of the organization.
______ cell junction is mediated by integrin.
Choose the correct option.
Find the odd one out.
