274
Question
The lacuna in the vascular bundles of monocot stem is
The lacuna in the vascular bundles of monocot stem is
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Solution
The correct option is D Lysigenous cavity
The first xylem formed is called as protoxylem. The protoxylem vessels have thick, lignified secondary wall which is arranged in annular rings or in spiral form. They are enable of stretching. But later primary and secondary walls of protoxylem are torn to form an internodal cavity called as lacuna. This is a type of lysigenous cavity as the entire cell is dissolved. Water is stored in this lysigenous cavity. Therefore, option D is correct.
The first xylem formed is called as protoxylem. The protoxylem vessels have thick, lignified secondary wall which is arranged in annular rings or in spiral form. They are enable of stretching. But later primary and secondary walls of protoxylem are torn to form an internodal cavity called as lacuna. This is a type of lysigenous cavity as the entire cell is dissolved. Water is stored in this lysigenous cavity. Therefore, option D is correct.
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