Question

Укажите одно различие в строении между ксилемой и флоэмой?

Answer 1

Различиями в строении между ксилемой и флоэмой являются :проводящими тканями растений. По ксилеме движутся минеральные соли и вода от корня вверх к остальным тканям,по флоэме движутся органические вещества вниз к ближлежащим тканям. И отличие у этих слоёв в том, что ксилема по большому счёту состоит из сосудов и трахеид, которые представлены мёртвыми клетками. А флоэма в основном состоит из живых ситовидных трубок.

Answer 2

Difference in Structure Between Xylem and Phloem

The xylem and phloem are two types of vascular tissues found in plants, and they play crucial roles in the transportation of water, nutrients, and sugars. One key difference in their structure is as follows:

Xylem: - The xylem is responsible for transporting water and minerals from the roots to the rest of the plant. - It is composed of tracheids, vessel elements, fibers, and parenchyma cells. - The main components of xylem are elongated cells with lignified walls, which provide structural support to the plant. - The movement of water in xylem occurs through capillary action and transpiration pull.

Phloem: - The phloem is responsible for transporting sugars, amino acids, and other organic compounds produced through photosynthesis from the leaves to the rest of the plant. - It is composed of sieve tube elements, companion cells, fibers, and parenchyma cells. - The main components of phloem are sieve tube elements, which are living cells with perforated end walls called sieve plates. - The movement of organic compounds in phloem occurs through a process called translocation, which is driven by osmotic pressure.

In summary, the xylem and phloem have distinct structures and functions in the vascular system of plants, with the xylem primarily responsible for water and mineral transport, while the phloem is responsible for the transport of organic compounds.