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What is the main difference between mature xylem cells and mature phloem cells?
The main difference between mature xylem and phloem cells lies in their functions and structural characteristics. Mature xylem cells are primarily responsible for transporting water and minerals from the roots to the rest of the plant, and they are typically dead at maturity, forming hollow tubes for efficient flow. In contrast, mature phloem cells transport organic nutrients, particularly sugars, throughout the plant, and they remain alive at maturity, featuring living cells like sieve tubes and companion cells that facilitate this process.
Why is the difference between xylem and phloem important in a plant?
There is structural difference between xylem and phloem. This is because their function is also different. Had there been no difference in structure, how these could have performed different function?
What is the difference between the cells that compose xylem and phloem tissue?
the cells of phloem are the only ones with cytoplasm
Is mature phloem tissue dead upon maturity?
No, mature phloem tissue is not dead upon maturity. Phloem tissue remains alive and functional, aiding in the transport of sugars and other organic compounds throughout the plant. The cells in mature phloem tissue are specialized for this function and typically stay alive for an extended period.
How are mature phloem cells controlled if they lack a nucleus?
Mature phloem cells are regulated by surrounding companion cells, which supply them with necessary proteins and nutrients. These companion cells are connected to the phloem cells by plasmodesmata, allowing for communication and control despite the phloem cells lacking a nucleus.
The driving force for the movement of materials in the phloem of plants is what?
a difference in osmotic water potential between the source and the sink
What are a plants Vascular tissues?
Xylem and Phloem. Read up on the difference between vascular and non-vascular plants.
Is wood from a tree secondary or primary phloem?
Wood is primarily composed of secondary xylem, while phloem is the vascular tissue responsible for transporting nutrients. Trees produce primary phloem during their early growth stages, but as they mature, they develop secondary phloem through the activity of the vascular cambium. Therefore, while wood itself is not phloem, trees have both primary and secondary phloem for nutrient transport.
What is the layer between the xylem and phloem in decot stem?
A layer of cambium is found between xylem and phloem in dicot stem.
What is the main difference between vascular and nonvasscular plants?
Presence of xylem & phloem in vascular plants and absence of these vascular tissues in non-vascular plants.
Difference between primary and secondary phloem?
Primary phloem 1. . Derived from procambium of apical meristem. 2. . District protophloem and metaphloem elements.3 Sieve tubes long and narrow. 3. Less or no development of phloem parenchyma. 4. Phloem fibres on the outer part. Secondary phloem 1. . Derived from vascular cambium. 2. . No clear demarcation between protophloems and metaphloems. 3. Sieve tubes short and wide. 4. .Well developed and abundant phloem parenchyma. 5. . Phloem fibers among the phloem parenchyma.
What is the diffference between xylem and phloem?
Xylem contains Vessels, trachieds and xylem parenchyma Phloem consists of sieve tubes, companion cells and phloem parenchyma
