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Question
Resin canals are
Resin canals are
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Solution
The correct option is C Schizogenous
Resin ducts are elongated and tubular in structure. These have intercellular spaces surrounded by epithelial cells that secrete resin into the canal. They can be traced in the wood of the genera Picea, Larix, Pinus, Pseudotsuga, andShorea.
Resin ducts are characteristic of the leaves and primary bark of young stems of all conifers. The xylem of pine has vertical and horizontal canals, whereas the phloem has only horizontal ones. Resin ducts are absent in bamboo, teak, and sal.
In such cases, the intercellular substance dissolves partly and an intercellular space develops. Ultimately this becomes quite big in size and is known as schizogenous cavity. The resin ducts in the Coniferales and the secretory ducts in the Compositae and Umbelliferae are the typical examples. So, resin canals are schizogenous and not lysogenous.
Thus, the correct answer is option A.
Resin ducts are elongated and tubular in structure. These have intercellular spaces surrounded by epithelial cells that secrete resin into the canal. They can be traced in the wood of the genera Picea, Larix, Pinus, Pseudotsuga, andShorea.
Resin ducts are characteristic of the leaves and primary bark of young stems of all conifers. The xylem of pine has vertical and horizontal canals, whereas the phloem has only horizontal ones. Resin ducts are absent in bamboo, teak, and sal.
In such cases, the intercellular substance dissolves partly and an intercellular space develops. Ultimately this becomes quite big in size and is known as schizogenous cavity. The resin ducts in the Coniferales and the secretory ducts in the Compositae and Umbelliferae are the typical examples. So, resin canals are schizogenous and not lysogenous.
Thus, the correct answer is option A.
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