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Answers
Answer:
1.SIMPLE PERMANENT TISSUE:
It is formed from a group of permanent cells which are structurally and functionally similar and perform a common function. Simple permanent tissue is classified into Parenchyma, Collenchyma and Sclerenchyma.
COMPLEX PERMANENT TISSUE:
It is also called as compound tissue and is formed from different type of cells that perform a common function. Complex permanent tissue is classified into Xylem and Phloem. These are conducting tissues.
2.The xylem consists of vessels, tracheids, xylem parenchyma cells, and xylem fiber cells.
3.Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells.
4..Xylem
5.Epidermis is the outer most later of the stem. It helps to protect the plant from mechanical injuries and entry of pathogens also loss of water.
6.In desert plants, epidermis has a thick waxy coating of cutin, to check water loss.
7.Cuticle is as a water permeability barrier that prevents evaporation of water from the epidermal surface, and also prevents external water and solutes from entering the tissues.
8.Stomata are pores surrounded by specialized parenchymatic cells called guard cells. It regulates the water movement through transpiration.
9..Differentiation is the process in which cells of the root and the shoot apical meristems and the cambium mature to perform specific functions. In this process, lots of structural changes occur within the plant cell.
10.The vascular cambium is the main growth tissue in the stems and roots of the plants. It produces secondary xylem inwards, towards the pith, and secondary phloem outwards, towards the bark.
11.Cork cambiumis a tissue found in many vascular plants as a part of the epidermis.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.
Answer:
1.SIMPLE PERMANENT TISSUE:
It is formed from a group of permanent cells which are structurally and functionally similar and perform a common function. Simple permanent tissue is classified into Parenchyma, Collenchyma and Sclerenchyma.
COMPLEX PERMANENT TISSUE:
It is also called as compound tissue and is formed from different type of cells that perform a common function. Complex permanent tissue is classified into Xylem and Phloem. These are conducting tissues.
2.The xylem consists of vessels,tracheids, xylem parenchyma cells, and xylem fiber cells.
3.Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells.
4.Xylem
5. Epidermis is the outer most later of the stem. It helps to protect the plant from mechanical injuries and entry of pathogens also loss of water.
6.In desert plants, epidermis has a thick waxy coating of cutin, to check water loss.
7.Cuticle is as a water permeability barrier that prevents evaporation of water from the epidermal surface, and also prevents external water and solutes from entering the tissues.
8.Stomata are pores surrounded by specialized parenchymatic cells called guard cells. It regulates the water movement through transpiration.
9.Differentiation is the process in which cells of the root and the shoot apical meristems and the cambium mature to perform specific functions. In this process, lots of structural changes occur within the plant cell.
10.The vascular cambium is the main growth tissue in the stems and roots of the plants. It produces secondary xylem inwards, towards the pith, and secondary phloem outwards, towards the bark.
11.Cork cambiumis a tissue found in many vascular plants as a part of the epidermis.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.