Explain xylem and phloem in detail
Answers
Answer:
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Explanation:
The xylem and the phloem make up the vascular tissue of a plant and transports water, sugars, and other important substances around a plant. ... Phloem is responsible for transporting food produced from photosynthesis from leaves to non-photosynthesizing parts of a plant such as roots and stems
Answer:
Phloem
The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called ‘sieve-tube members’ and ‘companion cells’.
Xylem
The xylem is responsible for keeping a plant hydrated. Xylem sap travels upwards and has to overcome serious gravitational forces to deliver water to a plant’s upper extremities, especially in tall trees.
Two different types of cells are known to form the xylem in different plant groups: tracheids and vessel elements. Tracheids are found in most gymnosperms, ferns, and lycophytes whereas vessel elements form the xylem of almost all angiosperms.
Xylem cells are dead, elongated and hollow. They have secondary cell walls and ‘pits’ (areas where the secondary cell wall is missing).