STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
MORPHOLOGY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Alternate
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Whorled
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Opposite superposed
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Opposite Decussate
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Detailed explanation-1: -The correct option is A True. Whorled arrangement: If more than two leaves arise from a single node and they are present surrounding the node in a circular manner, it is called a whorled arrangement. Multiple leaves originate from the same node resulting in the formation of a whorl with leaves at the same level.
Detailed explanation-2: -Leaf Arrangement (Phyllotaxy) Three different leaf arrangements: Alternate (one leaf per node), opposite (two leaves per node) and whorled (three or more leaves per node).
Detailed explanation-3: -Phyllotaxy is the pattern of arrangement of leaves on the stem or branch. If more than two leaves arise at a node and form a whorl, the phyllotaxy is called whorled, as in Alstonia.
Detailed explanation-4: -When more than two leaves develop at the nodes to form a whorl of leaves, it is called whorled phyllotaxy.
Detailed explanation-5: -Statement 1: Two leaves arising at the same node in opposite fashion is alternate phyllotaxy.