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What is the main function of the phloem in green plants?
Abstract. The phloem collects photoassimilates in green leaves, distributes them in the plant and supplies the heterotrophic plant organs (e.g. fruits, buds and roots). Phloem structure is specialized for loading, long-distance transport and unloading of assimilates.
What does phloem carry in a plant?
Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.
What is the function of phloem short answer?
While the main role of the phloem tissue is to transport carbohydrates from sources to sinks through the sieve elements, phloem is also composed of parenchyma cells, which play a key role in the storage of water, non-structural carbohydrates and storage proteins (Rosell 2016).
Which is a description of the role of the phloem?
The phloem moves food substances that the plant has produced by photosynthesis to where they are needed for processes such as: storage organs such as bulbs and tubers.
What are the 2 function of phloem?
How does the structure of the phloem help its function?
The cells that make up the phloem are adapted to their function: Each sieve tube has a perforated end so its cytoplasm connects one cell to the next. Companion cells – transport of substances in the phloem requires energy. One or more companion cells attached to each sieve tube provide this energy.
How is the phloem involved in photosynthesis?
Phloem moves sugar that the plant has produced by photosynthesis to where it is needed for processes such as: growing parts of the plant for immediate use. storage organs such as bulbs and tubers.
Why is translocation in plants important?
It is an important process in plants because the source of production i.e., the location of photosynthesis is not the same as the site at which nutrients are stored; as a result it is essential that the nutrients be moved throughout the plant via translocation otherwise the food produced in the leaves will not be able …