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Which among the following describes bark?
- a)Everything outside the vascular cambium including the secondary phloem
- b)Epidermis and parenchymatic cells
- c)Phloem and xylem
- d)Pith
Correct answer is option 'A'. Can you explain this answer?
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Which among the following describes bark?a)Everything outside the vasc...
A bark is everything outside the vascular cambium including the secondary phloem. The tissues in a bark comprise of secondary phloem and peridermis (secondary cortex, cork cambium and cork).
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Which among the following describes bark?a)Everything outside the vasc...
Bark
The bark of a tree is a crucial part of its structure and serves several important functions. It is the outermost layer of the tree trunk and consists of various tissues that protect the tree from external threats and help in nutrient transport.
Components of Bark
- Everything outside the vascular cambium including the secondary phloem: The bark includes all tissues outside the vascular cambium, which is a layer of meristematic cells responsible for secondary growth. This includes the secondary phloem, which is responsible for transporting organic nutrients throughout the tree.
- Epidermis and parenchymatic cells: The outermost layer of the bark is the epidermis, which provides protection from physical damage and pathogens. Parenchymatic cells are also found in the bark and play a role in storing nutrients and providing structural support.
- Phloem and xylem: The bark contains the secondary phloem, which transports organic nutrients produced in the leaves to other parts of the tree. It also includes some portions of the secondary xylem, which is responsible for transporting water and minerals from the roots to the rest of the tree.
- Pith: The pith is a central, spongy tissue found in the center of some tree trunks, but it is not part of the bark. It is involved in storage and transport of nutrients, but it is not considered part of the bark itself.
In summary, the bark of a tree is a complex structure that plays a vital role in protecting the tree and facilitating the transport of nutrients. It includes various tissues such as the secondary phloem, epidermis, and parenchymatic cells, but does not include the pith.
The bark of a tree is a crucial part of its structure and serves several important functions. It is the outermost layer of the tree trunk and consists of various tissues that protect the tree from external threats and help in nutrient transport.
Components of Bark
- Everything outside the vascular cambium including the secondary phloem: The bark includes all tissues outside the vascular cambium, which is a layer of meristematic cells responsible for secondary growth. This includes the secondary phloem, which is responsible for transporting organic nutrients throughout the tree.
- Epidermis and parenchymatic cells: The outermost layer of the bark is the epidermis, which provides protection from physical damage and pathogens. Parenchymatic cells are also found in the bark and play a role in storing nutrients and providing structural support.
- Phloem and xylem: The bark contains the secondary phloem, which transports organic nutrients produced in the leaves to other parts of the tree. It also includes some portions of the secondary xylem, which is responsible for transporting water and minerals from the roots to the rest of the tree.
- Pith: The pith is a central, spongy tissue found in the center of some tree trunks, but it is not part of the bark. It is involved in storage and transport of nutrients, but it is not considered part of the bark itself.
In summary, the bark of a tree is a complex structure that plays a vital role in protecting the tree and facilitating the transport of nutrients. It includes various tissues such as the secondary phloem, epidermis, and parenchymatic cells, but does not include the pith.
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Which among the following describes bark?a)Everything outside the vascular cambium including the secondary phloemb)Epidermis and parenchymatic cellsc)Phloem and xylemd)PithCorrect answer is option 'A'. Can you explain this answer?
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