Question

c. Differentiate between the following.
1. Collenchyma and sclerenchyma
2. Cuboidal and squamous epithelium
3. Ligament and tendon
4. Connective and muscular tissue
5. Meristematic and permanent tissues​

Answer 1

Explanation:

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1. Collenchyma:
2. Collenchyma: It is made up of living cells.
3. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.
4. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform.
5. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.
6. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide.
7. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.
8. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:
9. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.
10. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.The cells are empty.
11. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.The cells are empty.Wall thickening is uniform.
12. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.The cells are empty.Wall thickening is uniform.Wall thickening can be of cellulose lignin or both.
13. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.The cells are empty.Wall thickening is uniform.Wall thickening can be of cellulose lignin or both.The lumen or cell cavity is usually narrow.
14. Collenchyma: It is made up of living cells.The cells are filled up with protoplasm.Wall thickening is not uniform. Wall thickening consists of cellulose.The lumen or cell cavity is wide. Pits are simple and straight.Sclerenchyma:Sclerenchyma cells are generally dead.The cells are empty.Wall thickening is uniform.Wall thickening can be of cellulose lignin or both.The lumen or cell cavity is usually narrow.Pits are usually simple and oblique. They may be branched.
15. Epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue, through the basement membrane.[2][3] Cell junctions are well employed in epithelial tissues.In some tissues, a layer of columnar cells may appear to be stratified due to the placement of the nuclei. This sort of tissue is called a pseudostratified. All glands are made up of epithelial cells. Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing.
16. A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
17. Muscle tissue is a soft tissue that composes muscles in animal bodies, and gives rise to muscles' ability to contract. This is opposed to other components or tissues in muscle such as tendons or perimysium. It is formed during embryonic development through a process known as myogenesis.[1] Muscle tissue consists of elongated cells also called as muscle fibres. This tissue is responsible for movements in our body. Muscles contain special proteins called contractile protein which contract and relax to cause movemen

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