In this video,Dr. Priyanka Dadupanthi, Asst. Professor, Biyani Girls College is explaining about the Malpighian tubule which is the excretory organ of insects. These are yellow in colour. Number of these tbules are approximately150. These are present at junction of mesenteron and ileum.Tubule has two parts- 1. Distal (Secretory) 2. Proximal (Absorptive) Uric acid which is already present in haemolymph combines with potasium bicarbonate and water molecule and formed potasium urate. This again combines with salts and formed potasium bicarbonate and uric acid. This uric excrete in solid form.
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