Life processes: Excretion, Summaries of Biology

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5.4 TNTROOUCT LON x |The wernoval of Haro metabolic waste From th. Can organism \5 mulled excretion. osqanisms alternate waste Mafeviqls by ‘1 CO WSFOUNAING | body 0 | Ex. Amoeba [sp EXCRETION IN HUMAN BEINGS Of [Paste wn ovr body {nvolved In ex crsekion are * | Gi) Kidneys tnvpugh veo: and: uric acid | (i) Skin Tnsough Sw eat and oil | iii) Lungs *nsovgn caxloon dioxide and twater vapour |Gv) Largp intestine through undigested food Ww) Liver Enough bile pigments * | Process of Cycsekion~ | Kidneys ase locaked in the vlodomemM, on either Side of | toe backbone: Vsine produced In the Kidneys passes | sovgh the vveters into usinary bladder Where it Ig | stored vnaril weleased through orethwa. K | Purpose of vine formation | The purpose oF Making Urine 1s £0 filter out he waste | Products Seon the blood, nitrog eno Waste euch aS | sed ANd Vdc acid are MoVed Scorn blood in the | kidneys = Onik bn Kidneys” \ g Clusters of vey thin- walled blood Capillasies. on the veekhta- eveoU 1S MYSculas, SO it 1S LNdew NeTVOvS control. x me bladder mechanom of vrsine fovmation~ GoMeIAs Filtration: me Crlomervlus contains Useful 16) Makesals ke glucose amine acids water, Bolts And some g{At09, ENOUS waste are Hitesed From Ee ‘oiood This i6 Tegied Initial Fi\tcate- (a) Tulovler [Seleckive’ Reabsosption® rsom the Proximal conuslaked Tubvie (PCT) Ene veefel material ON ___ sored (ako the lood capilasy ALEWOTK cn the lolood capillary Hetwors ecxeked wkd Distall Convolated | | | (ai) Tvolou \ar Secsetion: Fso [we wast e Matesials Ae S | T pyle (DCT) Rvs WETRAS LoomMed- xe | IMPOSTANCe of Kidneys.” [0 Rieration of Blood 00 ST aeg | Water and salt balance, and adjusting Ome concenty a tion— Ata meph onS And NOTMONeS \ike ADH: - xo {enpoyrities Than coral Vein: + | Rexjal axtesy CaMes MO eerie ee Eee y/ || QW) Oraygqen: released dOTING AageuoT] \ — : Q ASeOUS \ | (tv) Casbon Dioxide: Teleaged Bowing Mant | producta = Resins amd QUINS Ave waste Ywoducks Stored especially = = {Old Kuler. a 3 | LenicelS ase Small Poses PFA Sent on tne bask of the pant Herp Ww welease of Qaseovsg waste prodocts. ¥ | he psoCesd in which Elants welease excess waters and Qaseovs Waste Products THrovglh stomata and lenticels lo Mew Stems and leaves, this process io called 'TSANS Piva ti Ov’. 9 wich Elant eeleadse excess wakes and x Ne Psv CRS \ gaseous waske Pro gtornara and lentice\s VA WLI STEMS and \eaves, Kis pote 1G called ‘Trans prvatl Ov’.