Question

State five economic importance of plant excretory products.

Answer 1

Answer:

oxygen is given out as a by-product. This oxygen acts as an excretory product and is given out by a process called diffusion. It is necessary to humans and animals to live. Another commonly produces waste material of plants is tannins. Tannin is a product of plants that are stored in the trunks of trees. They are present in the bark of the trees.Tannins can be used for production of anti-corrosive primer, sold under brand-name "Nox Primer" for treatment of rusted steel surfaces prior to painting, rust converter to transform oxidized steel into a smooth sealed surface and rust inhibitor.Like animals, plants also eliminate ammonia products such as alkaloids. The common type of alkaloids that plants produce are morphine, quinone which is used to treat many human diseases.Another waste product that plants produce is latex. These are produced by cells called lactifiers and found in rubber plants. This latex that is a waste product for plants is actually very useful to man in the manufacture of many rubber products.Plants also produce gums which are actually a degradation product of cells. These are also useful to man in the manufacture of many products.The hard transparent resins, such as the copals, dammars, mastic, and sandarac, are principally used for varnishes and adhesives, while the softer odoriferous oleo-resins (frankincense, elemi, turpentine, copaiba), and gum resins containing essential oils (ammoniacum, asafoetida, gamboge, myrrh, and scammony) are more used for therapeutic purposes, food and incense. The resin of the Aleppo Pine is used to flavour retsina, a Greek resinated wine.