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Is rubber a primary metabolite or a seco...

Is rubber a primary metabolite or a secondary metabolite? Write four sentences about rubber.

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Rubber is a secondary metabolite.
(i) It is obtained from the rubber tree i.e. Hevea brasiliensis.
(ii) Natural rubber (cis-1, 4-polyisoprene) is obtained from latex, which is produced from laticiferous cells in phloem.
(iii) Latex is coagulated and vulcanised by heating with sulphur.
(iv) Rubber is polymeric and terpenoid and known for its elasticity and plasticity.
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