You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will your use to distinguish between the two?

Secondary xylem

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Secondary phloem

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Protoxylem

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Cortical cells

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Solution

The correct option is C Protoxylem
Position of protoxylem can be used to distinguish between a root and a stem. Xylem in a root is exarch where protoxylem is towards periphery. While in a shoot, xylem is endarch where protoxylem is towards centre.

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You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will your use to distinguish between the two?

The correct option is C ProtoxylemPosition of protoxylem can be used to distinguish between a root and a stem. Xylem in a root is exarch where protoxylem is towards periphery. While in a shoot, xylem is endarch where protoxylem is towards centre.

The correct option is C Protoxylem
Position of protoxylem can be used to distinguish between a root and a stem. Xylem in a root is exarch where protoxylem is towards periphery. While in a shoot, xylem is endarch where protoxylem is towards centre.