Phloem
transports sugars downwards
Phloem is a plant tissue responsible for the transport of nutrients and organic compounds from the leaves to the other parts of the plant. It is composed of sieve tubes, companion cells, fibers, and parenchyma cells.
Sieve tubes are elongated cells that are responsible for the transport of sugars and other organic compounds. These cells are supported by companion cells, which provide nutrients and energy to the sieve tubes to aid in the transportation process. Fibers and parenchyma cells provide structural support and storage of nutrients.
Phloem transportation occurs through a process called translocation, which relies on physical pressure gradients and active transport mechanisms. This process requires energy in the form of ATP, which is provided by companion cells. The direction of phloem transport is typically from the source, such as the leaves, to the sink, which can be any growing or storage organ of the plant.
Overall, the phloem plays a critical role in the distribution of nutrients in plants and is a fundamental component of plant circulation.
More Answers:
Importance of Woody Tissue in Plant Development and GrowthSignificance of Stomata: Essential Structures for Transport and Exchange in Plants and Animals
The Role of Cuticle in Plants: Protection, Regulation, and Adaptation