Terpentine is a____resin.

Glyptal is a/an ____ resin.

Terpentine is used for medicine.

Asafoetida is a gum resin.

From which gymnospermic plant resin and turpentine are obtained?

[A] : Pinus bears resin canals . [R] : Resin canals are found in cortex and bounded by a glandular epithelial layer that secretes resin.

Resin and turpentine are products of

Go through the following statements (i) Phloem parenchya is absent in most of the monocot (ii) Phloem fibres store food material and other substance like resins, latex and mucilage (iii) Phloem fibre are generally absent in the primary phloem but are found in the secndary phloem (iv) Gymnosperms lack sieve tubes and albuminous cells. Which of these are correct ? a. (i), (ii) and (iii) b. (ii), (iii) and (iv) c. (i) and (iii) d. (i), (iii) and (iv)

Mention the source and one economic importance of resin .

Pines protect themselves from microbes and insects through resin.

Discuss the principle and method of softening of hard water by synthetic ion-exchange resins.