Vascular tissue
Vascular Tissue
Vascular tissue (/væˈskjʊlər ˈtɪʃuː/) is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and nutrients internally.
Etymology
The term "vascular" is derived from the Latin word "vasculum", meaning "small vessel". The term "tissue" comes from the French word "tissu", meaning "a weave", as it consists of many cells woven together.
Function
Vascular tissue is responsible for the transport of water, minerals, and sugars to different parts of the plant. The xylem moves water and minerals from the roots to the rest of the plant, while the phloem moves sugars and other nutrients from the leaves to the rest of the plant.
Types
There are two main types of vascular tissue:
- Xylem (/ˈzaɪləm/): This tissue transports water and dissolved minerals absorbed from the roots to the rest of the plant. It also helps to support the plant.
- Phloem (/ˈfloʊ.əm/): This tissue transports the photosynthetic products (mainly sugars) from the leaves where they are produced to the other parts of the plant where they are needed or will be stored.
Related Terms
- Vascular plants: Plants that have vascular tissues, which includes all land plants except for the mosses and their relatives.
- Vascular bundle: A strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
- Vascular cambium: A type of meristem (a tissue in plants that divides to contribute to plant growth) that is involved in secondary growth; that is, growth in thickness.
External links
- Medical encyclopedia article on Vascular tissue
- Wikipedia's article - Vascular tissue
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