Which of the following statements are the functions of a medullary ray in plants?
A
Storage of food
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B
Secondary growth
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C
Both of the above
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D
None of these
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Solution
The correct option is D Storage of food Medullary ray is a band of parenchyma in the secondary xylem extending into the secondary phloem of the stems of certain vascular plants, formed by the cambium and helps for the storage of food and conduction of nutrients. it helps in the gaseous exchange through the intercellular spaces.