PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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transferred into phloem tissue using energy where osmotic pressure increases and helps to take up water and push to tissues
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xylem
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xylem and phloem
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by active transport
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Detailed explanation-1: -The materials like sucrose are transported by phloem sap. This flow of sap occurs in a specialised network of cells, called sieve elements. Phloem transports sucrose and amino acids up and down to the plant.
Detailed explanation-2: -Material like sucrose is transferred into phloem tissue using energy from ATP. This increases the osmotic pressure of the tissue causing water to move into it. This pressure moves the material in the phloem to tissues which have less pressure. This allows the phloem to move material according to the plant’s needs.
Detailed explanation-3: -The cotransport of a proton with sucrose allows movement of sucrose against its concentration gradient into the companion cells. occurs. From the companion cells, the sugar diffuses into the phloem sieve-tube elements through the plasmodesmata that link the companion cell to the sieve tube elements.
Detailed explanation-4: -In plants, sucrose is transported over long distance in solution in the phloem sap. This flow of sap occurs in a specialised network of cells, called the sieve elements.