explain calculator system with in human and transport system in plant
Answers
Answer:
The key difference between the circulatory system of the human body (or that of any animal) and the water transport system in a plant is that of the underlying forcing mechanism. In case of human body, the circulation of fluids takes place due to the presence of heart, which acts as a pump. In comparison, there is no pumping mechanism in a plant and the water movement occurs by capillary pressure against the gravity.
Answer:
Plants have two transport systems - xylem and phloem. Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.
Xylem:-The xylem transports water and minerals from the roots up the plant stem and into the leaves. a mature flowering plant or tree, most of the cells that make up the xylem are specialised cells called vessels. Vessels:
1. Lose their end walls so the xylem forms a continuous, hollow tube. This allows water to flow easily.
2. Become strengthened by a chemical called lignin. The cells are no longer alive. Lignin gives strength and support to the vessel.
Phloem
Phloem moves sugar that the plant has produced by photosynthesis to where it is needed for processes such as:
1. growing parts of the plant for immediate use
2. storage organs such as bulbs and tubers
3. developing seeds
4. respiration
Explanation:
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