HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following describes the heartwood of a tree?
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old phloem that is no longer conducting nutrients
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vascular cambium and cork cambium
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old xylem that is no longer conducting water
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active xylem that transports water and minerals
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Explanation:
Detailed explanation-1: -Dead xylem tissue forms the heartwood, or the wood we use for many different purposes.
Detailed explanation-2: -Xylem is what eventually becomes wood; it grows inward from the cambium layer and acts as unidirectional vascular tissue, pulling water and other nutrients up from the roots to the top of the tree.
Detailed explanation-3: -The inner non-functional secondary xylem is called heartwood, the outer functional secondary xylem, sapwood.
There is 1 question to complete.