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SN Oe OO SR, RW Q. 6. How in plant body circulation, transpiration, respiration and, photosynthesis are rt with excretion in the plant body ?, [o}Ans] By the process of circulation water is absorbed from the soil and the water, formed as the by-products during metabolic activities. This water is liberated into the, atmosphere by transpiration process, Carbon dioxide and oxygen formed during, respiration and photosynthesis are liberated through stomata, lenticel and cuticle, , respec ° ;, , {6¥Ans] Latex is non-nitrogenous eeewsiory ‘substance of plant. It is a milky white fluid, secreted by the latex cells or the vessels, of s some plants. It is obtained from Indian, , , , , ly., , , , What is latex ? In which plant is it available ?, | (Tri. | 88; M. E. ’84, ’86, ’88, °98, 2000), , , , , , , a is the nities ecsinical importance of latex ?, | (M, E. ’04), , , , My) Importance—Latex of, , Indian rubber is the source of nbbec") Hi | Py, E48 Q. 9. Mention the source and economic importance of resin, (M. E. ’02), in is 5 from resin ducts of pine., , i) Source res, f [SYA ns} (i) ihe Ne A) ae. walich ond paints:, , , , , , , , , , coffee. 6. Tannins, is given out in the, mM are collectively, , al. 3. What is the, importance., he name of one, Wame an alkaloid, B of nicotine and, . What is gum ?, , and morphine ?, , , , , , vn as catabolic, ance of latex ?, f (i) Cinchona,