PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to transport food up through the plant
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to transport food up and down the plant
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to transport water up through the plant
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to transport water up and down the plant
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Detailed explanation-1: -Phloem is a class of complex permanent tissue that develops into a conductive or vascular system in the plant’s body. It transports the prepared nutrients from the leaves to the growing areas and storage organs.
Detailed explanation-2: -Plant Physiology and Development Phloem is one of the two tissues that make up the plant’s long-distance transport system, the other being xylem. Phloem translocates water and products of photosynthesis from source tissues to the sink regions where they are utilized or stored.
Detailed explanation-3: -Phloem transports photosynthetically prepared food materials from the leaves to the storage organs and later from storage organs to the growing regions of the plant body.
Detailed explanation-4: -Transport in the phloem is therefore both up and down the stem. Sucrose is the transport sugar in the phloem. Transport of substances in the phloem is called translocation . Translocation requires energy as it is an active process.
Detailed explanation-5: -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).