0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

Resin canals are
  1. None of the above
  2. Lysogenous
  3. Schizogenous
  4. Schizolysogenous

A
Schizogenous
B
Schizolysogenous
C
None of the above
D
Lysogenous
Solution
Verified by Toppr

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.

Was this answer helpful?
0
Similar Questions
Q1
Resin canals are
View Solution
Q2
Resin canals abundantly occur in
View Solution
Q3
Resin canals can be traced in
View Solution
Q4
Which of the following are cation exchange resin and anion exchange resins?
View Solution
Q5

What is resin code? How are resin codes numbered?


View Solution