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Question
The transport of nutrients is brought about by part labelled as
The transport of nutrients is brought about by part labelled as
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Solution
The correct option is B 3
In vascular plants, phloem is the living tissue that carries organic nutrients. It is labeled by part 3. In trees, the phloem is the innermost layer of the bark. Phloem tissue consists of conducting cells, generally called sieve elements; parenchyma cells, including both specialized companion cells or albuminous cells and unspecialized cells; and supportive cells, such as fibers and sclereids. The phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by the photosynthetic areas. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs. Hence option B is correct.
In vascular plants, phloem is the living tissue that carries organic nutrients. It is labeled by part 3. In trees, the phloem is the innermost layer of the bark. Phloem tissue consists of conducting cells, generally called sieve elements; parenchyma cells, including both specialized companion cells or albuminous cells and unspecialized cells; and supportive cells, such as fibers and sclereids. The phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by the photosynthetic areas. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs. Hence option B is correct.
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