Mention the components of the transport system in highly organised plants. State the funtions of these
components.
Answers
Answer:
The components of transport system in highly organised plants include xylem tissues and phloem tissues.
These are under complex permanent tissues which are responsible for transportation in plants.
The xylem and phloem tissues together are called vascular bundles.
Xylem tissues are responsible for the transportation of water and minerals and the following tissues are responsible for transportation of food.
The xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres.
The tracheids and vessels are tubular structure. The xylem tissues allow transportation vertically.
Most of the cells in xylem tissues are dead. The xylem parenchyma is responsible of sideways conduction of water.
The phloem tissues include four types of elements that are sieve tubes, companion cells, phloem fibres and phloem parenchyma.
Here, sieve tubes are tubular cells. Phloem can transport food in both directions.
There are two components of transport in plants :
- xylem
- phloem
☛ Xylem :
- it helps in the transport of water and Minerals
- it supports undirectional flow only
☛ Phloem :
- it helps in transport of various substances
- it provides bi directional force
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