Question

Why do growing shoots need sugar?

Answer 1

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Plants need an energy source to grow. ... Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks.

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Answer 2

Answer:

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Plant carbohydrates, in the form of sugars are the energy source by which all plants carry out their major functions. All plants must photosynthesize, transpire and respire to survive. Sugar plays a vital role in all of these.

Sugars within the plant are responsible for affecting plant growth. The sugars produced in the leaves send the signal to trigger the transition between the juvenile phases of the plant to the adult one. Sugars are needed at all stages from seed, to cotyledon stage, to leaf development, stem development, fruit development and all stages in between. They (the sugars) further play a role in establishing the ratio of a plant’s below ground growth and above ground growth (roots to shoots). In addition to the regulation of growth, the sugars are also responsible for developing some of the plant’s structures. Plant cellulose, the fibrous materials in plants’ cell walls is made up of sugars as are the tubers of some plants, like potatoes.