STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANATOMY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A
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B
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C
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D
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Detailed explanation-1: -Therefore, the correct answer is option C.
Detailed explanation-2: -Secondary xylem and vascular rays.
Detailed explanation-3: -The cambium cells on the outside become part of the tree’s phloem, a band of inner bark through which the tree’s food supply moves. The cambium cells on the inside become the xylem, a system of tiny tubelike cells that carry the tree’s water supply. These xylem layers give us the annual rings.
Detailed explanation-4: -Annual growth rings tell us not only how old the tree was when it died but also the story of the travails it endured during its lifetime. Tree rings form in the trunk of a tree from new cells generated in the cambium, the meristem (growing point) that lies just beneath the tree’s bark.
Detailed explanation-5: -The secondary phloem forms outside of the vascular cambium, and traces of primary phloem (protophloem) are visible above it. It is rich in fibers, and unlike the wood, it does not form annual rings.