Which of the following sequences is the correct arrangement of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside ?
Answer Details
The correct arrangement of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside is:
- pith, xylem, cambium, phloem, cortex, collenchyma, and epidermis.
Explanation:
- Pith is a central region of parenchyma cells in the stem.
- Xylem is located just outside the pith, and it transports water and minerals from roots to leaves.
- Cambium is a layer of meristematic cells between xylem and phloem, which can differentiate into both types of tissues.
- Phloem is located on the outer side of cambium, and it transports sugars from leaves to other parts of the plant.
- Cortex is a layer of ground tissue located outside the phloem.
- Collenchyma is a type of ground tissue located just below the epidermis and helps provide support to the plant.
- Epidermis is the outermost layer of cells that protects the plant and helps in the exchange of gases and water vapor.
Therefore, the correct option is: pith, xylem, cambium, phloem, cortex, collenchyma, and epidermis.