Question

Write four difference between epithelial tissue and connective tissue?
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Answer 1

difference between epithelial and connective tissues:

1. Epithelial tissue is made up of the cell and a small amount of intercellular matrix, while connective tissues are made up of the cell and a huge amount of intercellular matrix.
2. Epithelial tissues mainly form a covering of the organs, internally as well externally, helps in transcellular or intercellular transportation, in selective absorption, and in the protection of cells; connective tissues support and anchors other tissue and organs, helps in muscles and bone formation, also helps in working of blood and lymph.
3. Epithelial tissue develops from the endoderm or mesoderm or ectoderm from the embryological germ layer; connective tissue develops from mesoderm (embryonic mesodermal origin).
4. The arrangement of epithelial cells are either single or multilayer; In connective tissue cells are present in a scattered form in the matrix and does not show any arrangement.
5. Epithelial tissues are not enclosed by blood capillaries while in connective tissue, cells are enclosed by blood capillaries.
6. Epithelial tissues lie above the basement membrane; connective tissues lie below basement membrane, called lamina propia.
7. Cells of epithelial tissues are not bounded by blood capillaries and they gain their nutrition from the cellular membrane; cells of connective tissues are bounded by blood capillaries and hence gain nutrition from there.
8. Bounded by special proteins, desmosomes and hemidesmosomes are epithelial tissues; connective tissues are bounded by blood capillaries and materials like elastin or collagen fibers.
9. Epithelial tissues can be found in lungs, kidneys, skin, mucous membranes and connective tissues are found in bones, nerves, ligaments, tendons, blood

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Answer 2

Explanation:

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