The type of phyllotaxy in which a single leaf arises at each node in alternate manner is known as:
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Quick Answer
Option B
alternate.
— Concept: This question tests your understanding of phyllotaxy , which is the pattern of arrangement of leaves on the…Step-by-step solution
1AnswerB·
Concept: This question tests your understanding of phyllotaxy, which is the pattern of arrangement of leaves on the stem or branch.
Why (B) is correct: In alternate phyllotaxy, a single leaf arises at each node, and these leaves are arranged in an alternating fashion along the stem. This is exactly what the question describes.
Why other options are wrong:
- (A) opposite: In opposite phyllotaxy, two leaves arise at each node, opposite to each other.
- (C) whorled: In whorled phyllotaxy, more than two leaves arise at each node and form a whorl or circle.
- (D) Both (A) and (B): This is incorrect as opposite and alternate are distinct types of phyllotaxy.
NEET Tip: Remember common examples for each type: Alternate (China rose, mustard, sunflower), Opposite (Calotropis, Guava), Whorled (Alstonia).
Correct Answer: (B)
alternate.