Question

1.Which tissue has sieve plates?
2.What makes the sclerenchyma cells so hard?
3.What is epithelium and endothelium?
4.Which tissue is present on the scales of snake?
5.What is the special feature of ciliated epithelium tissue?
6.Name the fat storing connective tissue.
7.What contains white collagen fibre- tendon or ligament?
8.Which connective tissue attaches bones to each other?
9.Name the protein present in the matrix of cartilage.
10.Presence of which protein makes the matrix of bone very hard?​

Answer 1

Answer:

1. phloem tissue

2. Lignin

3. main difference between both is epithelial cells line both internal and external surfaces of body whereas endothelial line the internal surfaces of the body.

4. scales are made up of keratin

5. it is a thin tissue that has hair like structure on it called cilia. it helps of trap dust , mucus and bacteria present in nose , fallopian tubes etc.

6. Adipose tissue

7. Tendon ; ligament contains yellow collagen fibres.

8. Ligament

9. Collagen type 2 protein

10. collagen content makes it hard.