difference the following - meristematic tissue and ground tissue - apical meristem and lateral meristem - parenchyma and collenchyma - sclerenchyma and parenchyma - xylem and polen - epidemis and bark
Answers
give more points for this long question please or just ask one by one
Explanation:
1#meristematic tissue
-are capable of continuously dividing -Meristematic tissue is composed of parenchyma cells.
Meristematic tissue can be found in the tips of the shoots and roots, and buds. It is also found in woody plants as a ring around the stem.
1# ground tissue
- is a type of a permanent tissue whose cells are incapable of dividing.
-Ground tissue is composed of parenchyma, collenchyma, and sclerenchyma cells.
- Ground tissue can be found in between the dermal and the vascular regions of the stem, roots, and leaves.
2#apical meristem
-occurs at the tips of roots and shoots
-produce primary tissues
-responsible for the formation of young leaves and elongation of roots and stems.
2#lateral meristem
-occurs in the mature regions of roots and shoots
- produce secondary tissues
-respisible for producing a woody axis and for the thickness of the plants.
3#parenchyma
Parenchyma cells are the type of living plant cells, which are known for healing and repair mechanism, and food storage.
3#Collenchyma
collenchyma cells are known for providing mechanical support to the plants, by protecting the delicate inner part of the plant.
4#Parenchyma:
(1) Cells are thin walled and unspecialised. (2) These are living cells. (3) Cells are usually loosely packed with large intercellular space. (4) Stores nutrients and water in stem and roots. (5) Some cells contain chlorophyll, called as chlorenchyma and perform photosynthesis. Other cells have large air cavities, called as aerenchyma, which provide buoyancy to the hydrophytic plants.
4#Sclerenchyma:
(1) Cells are thick walled and lignified. (2) Tissues are made up of dead cells. (3) No intercellular spaces between the cells are found. (4) Provides strength to the plant parts. (5) The cells are long and narrow, make the plant hard and stiff. The tissue is present in the stem around vascular bundles, in veins of leaves and hard covering of seeds and nuts.
5#xylem
-conducts waters and minerals from roots to leaves
-composed of mainly dead elements
-transport is unidirectional
5#phloem
-conducts food from leaves to all part of the plants
-composed of living elements
-transport is bidirectional.
6#epidermis
-is a protective tissue formed by one cell layers over various parts of the plant body like leaves, flowers, stem and root.
-In case of leaves , the epidermis is covered by a layer of waxy substance named Cutin. This layer is called Cuticle.
-Cells of epidermis are elongated and flattened , without any intercellular space.
6#Bark:
-The bark is also a protective layer formed after the death of the cells outside the layers of the Vascular Cambium.
-It contains more than one layer of cell, hence involves the epidermis, cork, phelloderm,etc.
-There is intercellular space between the dead cells in order to allow air exchange.
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