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Excretion

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38: 275: 174: 170:, etc. are forced from the interior of the plant by hydrostatic pressures inside the plant and by absorptive forces of plant cells. These latter processes do not need added energy, they act passively. However, during the pre-abscission phase, the metabolic levels of a leaf are high. Plants also excrete some waste substances into the soil around them. 162:. It has been shown that the leaf acts as an 'excretophore' and, in addition to being a primary organ of photosynthesis, is also used as a method of excreting toxic wastes via diffusion. Other waste materials that are exuded by some plants â€” 135:. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes. This process of removal of metabolic waste from the body is known as excretion. 324:. Metabolic waste diffuses or is actively transported into the tubule, which transports the wastes to the intestines. The metabolic waste is then released from the body along with fecal matter. 688: 742: 415: 476: 466: 834: 799: 1528: 449: 1082: 1518: 562: 1458: 951: 1513: 1209: 1120: 986: 305:, can also excrete salt via specialized nasal salt glands, the saline solution leaving through nostrils in the 1438: 1063: 709: 991: 1181: 293:
in the form of a paste. Although this process is metabolically more expensive, it allows more efficient
916: 735: 31: 1568: 1428: 1176: 1170: 1493: 1195: 385: 1244: 1006: 1001: 911: 829: 441: 355: 17: 1380: 1141: 1116: 1051: 940: 824: 400: 390: 234: 1563: 1488: 1280: 759: 728: 158:, root cell walls, and other routes. Plants can get rid of excess water by transpiration and 1523: 1385: 1295: 1136: 1016: 784: 512: 226: 112: 105: 69: 8: 1578: 1573: 1433: 1321: 1290: 936: 896: 819: 375: 516: 267:, that are less harmful as there is less water in the environment and ammonia itself is 1558: 1403: 1353: 1254: 1067: 1046: 946: 867: 779: 665: 648: 600: 575: 530: 410: 260: 1398: 1259: 1249: 1077: 1071: 906: 670: 605: 472: 445: 317: 85: 1443: 1331: 1326: 1126: 1096: 882: 862: 844: 660: 595: 587: 534: 520: 124: 101: 1483: 1358: 1186: 1146: 1131: 839: 789: 321: 53: 37: 1041: 1473: 1453: 1372: 1214: 956: 901: 623: 563:
http://www.tutorvista.com/content/science/science-ii/excretion/excretion-plants
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excrete carbon dioxide and water as respiratory products. In green plants, the
120: 81: 42: 263:, ammonia-like compounds are converted into other nitrogenous materials, i.e. 30:
This article is about a biological process. For a pharmacokinetics phase, see
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Encyclopædia Britannica. Encyclopædia Britannica Ultimate Reference Suite
365: 715: 500: 115:, several chemical reactions take place in the body. These are known as 1413: 1345: 1237: 1012: 395: 360: 298: 256: 210: 116: 61: 282:. Insects, birds and some other reptiles also use a similar mechanism. 274: 525: 405: 332: 290: 237:), and the cleared substances are then excreted from the body in the 218: 206: 202: 178: 159: 132: 77: 624:"Excretion - General features of excretory structures and functions" 1313: 1285: 1272: 961: 222: 108:
discharge waste products directly through the surface of the cell.
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directly into the external environment, as this compound has high
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White cast of uric acid defecated along with the dark feces by a
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released during respiration gets used during photosynthesis.
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Clinical Journal of the American Society of Nephrology
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Elimination by an organism of metabolic waste products
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The Transactions of the Edinburgh Obstetrical Society
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and there is ample water available for dilution. In
890: 297:retention and it can be stored more easily in the 1550: 573: 464: 695:(2nd ed.). Oxford University Press. 1989. 471:. University of Chicago Press. pp. 583–. 1371: 736: 574:Weiner ID, Mitch WE, Sands JM (August 2015). 659:. Edinburgh: Oliver and Boyd: 164–173, 169. 185:In animals, the main excretory products are 743: 729: 646: 1344: 812: 767: 664: 649:"Gastro-Intestinal Disorder in Sucklings" 599: 552:. Chicago: Encyclopædia Britannica. 2010. 524: 271:. This process is called detoxification. 273: 172: 36: 1271: 979: 458: 435: 335:the word ejecta is more commonly used. 64:, this is primarily carried out by the 56:, which is an essential process in all 14: 1551: 1104: 1034: 640: 468:Hyman's Comparative Vertebrate Anatomy 465:Marvalee H. Wake (15 September 1992). 429: 724: 1159: 498: 327:The excreted material may be called 289:excrete their nitrogenous wastes as 716:Brian J Ford on leaf fall in Nature 416:Workers' right to access the toilet 24: 1529:Minimum bactericidal concentration 41:Mammals excrete urine through the 25: 1590: 703: 301:. Many avian species, especially 1519:Minimum inhibitory concentration 750: 150:is a byproduct generated during 1459:WHO list of essential medicines 952:Non-specific effect of vaccines 111:During life activities such as 1514:Antimicrobial pharmacodynamics 681: 616: 567: 556: 541: 492: 438:Biology: A Modern Introduction 13: 1: 1439:Functional analog (chemistry) 422: 992:Hill equation (biochemistry) 7: 338: 76:. This is in contrast with 10: 1595: 1507:Antimicrobial pharmacology 987:Dose–response relationship 917:Desensitization (medicine) 32:Elimination (pharmacology) 29: 1429:Coinduction (anesthetics) 1422: 1223: 1095: 881: 758: 693:Oxford English Dictionary 229:many substances from the 1494:Multiple drug resistance 1467:Tolerance and resistance 835:Physiological antagonist 712:, Animation of excretion 499:Ford BJ (October 1986). 386:Respiration (physiology) 225:. The liver and kidneys 1245:Neuropsychopharmacology 1007:Cheng-Prussoff Equation 1002:Del Castillo Katz model 929:Other effects of ligand 912:Receptor (biochemistry) 830:Irreversible antagonist 628:Encyclopedia Britannica 442:Oxford University Press 356:Countercurrent exchange 100:, which is part of the 1381:Classical pharmacology 1142:Plasma protein binding 1117:Volume of distribution 825:Competitive antagonist 401:Sustainable sanitation 391:Reuse of human excreta 283: 182: 177:Chemical structure of 46: 1489:Antibiotic resistance 1281:Clinical pharmacology 800:Physiological agonist 760:Ligand (biochemistry) 647:Carmichael J (1887). 501:"Even plants excrete" 316:, a system involving 277: 176: 106:Unicellular organisms 40: 1386:Reverse pharmacology 1296:Pharmacoepidemiology 1137:Biological half-life 1017:Ligand binding assay 891:Activity at receptor 785:Irreversible agonist 592:10.2215/CJN.10311013 154:, and exits through 113:cellular respiration 1434:Combination therapy 1322:Pharmacoinformatics 1291:Medicinal chemistry 897:Mechanism of action 517:1986Natur.323..763F 436:Beckett BS (1987). 376:Improved sanitation 320:is used to excrete 261:terrestrial animals 1404:Immunopharmacology 1354:Pharmacotoxicology 1255:Psychopharmacology 1047:Intrinsic activity 947:Pleiotropy (drugs) 868:Agonist-antagonist 780:Endogenous agonist 411:Vermifilter toilet 318:Malpighian tubules 284: 183: 52:is elimination of 47: 1546: 1545: 1542: 1541: 1502: 1501: 1399:Photopharmacology 1394: 1393: 1367: 1366: 1340: 1339: 1304: 1303: 1267: 1266: 1260:Electrophysiology 1250:Neuropharmacology 1205: 1204: 1155: 1154: 1091: 1090: 1078:Therapeutic index 1030: 1029: 975: 974: 924: 923: 853: 852: 808: 807: 478:978-0-226-87013-7 233:(for example, in 86:placental mammals 16:(Redirected from 1586: 1569:Digestive system 1504: 1503: 1464: 1463: 1444:Polypharmacology 1369: 1368: 1342: 1341: 1332:Pharmacogenomics 1327:Pharmacogenetics 1306: 1305: 1269: 1268: 1230: 1229: 1157: 1156: 1127:Rate of infusion 1102: 1101: 1097:Pharmacokinetics 1032: 1031: 977: 976: 926: 925: 888: 887: 883:Pharmacodynamics 863:Neurotransmitter 845:Enzyme inhibitor 810: 809: 765: 764: 745: 738: 731: 722: 721: 697: 696: 685: 679: 678: 668: 644: 638: 637: 635: 634: 620: 614: 613: 603: 571: 565: 560: 554: 553: 545: 539: 538: 528: 526:10.1038/323763a0 496: 490: 489: 487: 485: 462: 456: 455: 433: 251:usually excrete 102:excretory system 21: 1594: 1593: 1589: 1588: 1587: 1585: 1584: 1583: 1549: 1548: 1547: 1538: 1498: 1484:Drug resistance 1462: 1418: 1390: 1363: 1359:Neurotoxicology 1336: 1300: 1263: 1225: 1219: 1201: 1151: 1147:Bioavailability 1132:Onset of action 1087: 1026: 971: 920: 877: 849: 840:Inverse agonist 804: 790:Partial agonist 754: 749: 706: 701: 700: 687: 686: 682: 645: 641: 632: 630: 622: 621: 617: 572: 568: 561: 557: 547: 546: 542: 497: 493: 483: 481: 479: 463: 459: 452: 444:. p. 110. 434: 430: 425: 420: 341: 322:metabolic waste 249:Aquatic animals 235:renal excretion 84:. For example, 54:metabolic waste 35: 28: 23: 22: 15: 12: 11: 5: 1592: 1582: 1581: 1576: 1571: 1566: 1561: 1544: 1543: 1540: 1539: 1537: 1536: 1531: 1526: 1524:Bacteriostatic 1521: 1516: 1510: 1508: 1500: 1499: 1497: 1496: 1491: 1486: 1481: 1476: 1474:Drug tolerance 1470: 1468: 1461: 1456: 1454:Lists of drugs 1451: 1446: 1441: 1436: 1431: 1426: 1424: 1420: 1419: 1417: 1416: 1411: 1406: 1401: 1395: 1392: 1391: 1389: 1388: 1383: 1377: 1375: 1373:Drug discovery 1365: 1364: 1362: 1361: 1356: 1350: 1348: 1338: 1337: 1335: 1334: 1329: 1324: 1318: 1316: 1302: 1301: 1299: 1298: 1293: 1288: 1283: 1277: 1275: 1265: 1264: 1262: 1257: 1252: 1247: 1242: 1240: 1227: 1221: 1220: 1218: 1217: 1215:Bioequivalence 1212: 1206: 1203: 1202: 1200: 1199: 1189: 1184: 1179: 1174: 1163: 1161: 1153: 1152: 1150: 1149: 1144: 1139: 1134: 1129: 1124: 1114: 1108: 1106: 1099: 1093: 1092: 1089: 1088: 1086: 1085: 1080: 1075: 1049: 1044: 1038: 1036: 1028: 1027: 1025: 1024: 1009: 1004: 999: 994: 989: 983: 981: 973: 972: 970: 969: 959: 957:Adverse effect 954: 949: 944: 932: 930: 922: 921: 919: 914: 909: 904: 902:Mode of action 899: 894: 892: 885: 879: 878: 876: 875: 870: 865: 860: 854: 851: 850: 848: 847: 842: 837: 832: 827: 822: 816: 814: 806: 805: 803: 802: 797: 792: 787: 782: 777: 771: 769: 762: 756: 755: 748: 747: 740: 733: 725: 719: 718: 713: 705: 704:External links 702: 699: 698: 680: 639: 615: 586:(8): 1444–58. 566: 555: 540: 491: 477: 457: 450: 427: 426: 424: 421: 419: 418: 413: 408: 403: 398: 393: 388: 383: 381:Osmoregulation 378: 373: 368: 363: 358: 353: 348: 342: 340: 337: 187:carbon dioxide 152:photosynthesis 144:carbon dioxide 121:carbon dioxide 43:urinary system 26: 9: 6: 4: 3: 2: 1591: 1580: 1577: 1575: 1572: 1570: 1567: 1565: 1562: 1560: 1557: 1556: 1554: 1535: 1532: 1530: 1527: 1525: 1522: 1520: 1517: 1515: 1512: 1511: 1509: 1505: 1495: 1492: 1490: 1487: 1485: 1482: 1480: 1479:Tachyphylaxis 1477: 1475: 1472: 1471: 1469: 1465: 1460: 1457: 1455: 1452: 1450: 1447: 1445: 1442: 1440: 1437: 1435: 1432: 1430: 1427: 1425: 1421: 1415: 1412: 1410: 1407: 1405: 1402: 1400: 1397: 1396: 1387: 1384: 1382: 1379: 1378: 1376: 1374: 1370: 1360: 1357: 1355: 1352: 1351: 1349: 1347: 1343: 1333: 1330: 1328: 1325: 1323: 1320: 1319: 1317: 1315: 1311: 1307: 1297: 1294: 1292: 1289: 1287: 1284: 1282: 1279: 1278: 1276: 1274: 1270: 1261: 1258: 1256: 1253: 1251: 1248: 1246: 1243: 1241: 1239: 1235: 1231: 1228: 1222: 1216: 1213: 1211: 1208: 1207: 1197: 1193: 1190: 1188: 1185: 1183: 1180: 1178: 1175: 1172: 1168: 1165: 1164: 1162: 1158: 1148: 1145: 1143: 1140: 1138: 1135: 1133: 1130: 1128: 1125: 1122: 1118: 1115: 1113: 1110: 1109: 1107: 1103: 1100: 1098: 1094: 1084: 1081: 1079: 1076: 1073: 1069: 1065: 1061: 1057: 1053: 1050: 1048: 1045: 1043: 1040: 1039: 1037: 1033: 1022: 1018: 1014: 1010: 1008: 1005: 1003: 1000: 998: 995: 993: 990: 988: 985: 984: 982: 978: 967: 966:Neurotoxicity 963: 960: 958: 955: 953: 950: 948: 945: 942: 938: 935:Selectivity ( 934: 933: 931: 927: 918: 915: 913: 910: 908: 905: 903: 900: 898: 895: 893: 889: 886: 884: 880: 874: 873:Pharmacophore 871: 869: 866: 864: 861: 859: 856: 855: 846: 843: 841: 838: 836: 833: 831: 828: 826: 823: 821: 818: 817: 815: 811: 801: 798: 796: 793: 791: 788: 786: 783: 781: 778: 776: 773: 772: 770: 766: 763: 761: 757: 753: 746: 741: 739: 734: 732: 727: 726: 723: 717: 714: 711: 708: 707: 694: 690: 684: 676: 672: 667: 662: 658: 654: 650: 643: 629: 625: 619: 611: 607: 602: 597: 593: 589: 585: 581: 577: 570: 564: 559: 551: 548:"Excretion". 544: 536: 532: 527: 522: 518: 514: 511:(6091): 763. 510: 506: 502: 495: 480: 474: 470: 469: 461: 453: 451:0-19-914260-2 447: 443: 439: 432: 428: 417: 414: 412: 409: 407: 404: 402: 399: 397: 394: 392: 389: 387: 384: 382: 379: 377: 374: 372: 371:Human excreta 369: 367: 364: 362: 359: 357: 354: 352: 349: 347: 344: 343: 336: 334: 330: 325: 323: 319: 315: 310: 308: 304: 300: 296: 292: 288: 281: 276: 272: 270: 266: 262: 258: 254: 250: 246: 244: 240: 236: 232: 228: 224: 220: 216: 212: 208: 204: 200: 196: 195:ammoniotelics 192: 188: 180: 175: 171: 169: 165: 161: 157: 153: 149: 145: 141: 136: 134: 130: 126: 122: 118: 114: 109: 107: 103: 99: 95: 91: 87: 83: 79: 75: 71: 67: 63: 59: 55: 51: 44: 39: 33: 19: 1564:Pharmacology 1449:Chemotherapy 1409:Cell biology 1310:Biochemistry 1234:Neuroscience 1191: 1182:Distribution 1112:Loading dose 795:Superagonist 752:Pharmacology 692: 683: 656: 652: 642: 631:. Retrieved 627: 618: 583: 579: 569: 558: 549: 543: 508: 504: 494: 482:. Retrieved 467: 460: 437: 431: 346:Anal hygiene 328: 326: 311: 285: 247: 184: 137: 110: 96:through the 49: 48: 1534:Bactericide 1210:Compartment 1021:Patch clamp 997:Schild plot 710:UAlberta.ca 366:Homeostasis 211:uricotelics 62:vertebrates 1579:Physiology 1574:Metabolism 1553:Categories 1414:Physiology 1346:Toxicology 1238:psychology 1187:Metabolism 1177:Absorption 1171:Liberation 1013:Organ bath 941:Functional 820:Antagonist 813:Inhibitory 768:Excitatory 633:2021-02-05 423:References 396:Sanitation 361:Defecation 257:solubility 203:ureotelics 117:metabolism 1559:Excretion 1196:Clearance 1192:Excretion 1011:Methods ( 406:Urination 333:pathology 291:uric acid 219:Arachnida 207:uric acid 179:uric acid 160:guttation 133:uric acid 123:, water, 92:from the 78:secretion 58:organisms 50:Excretion 1314:genetics 1286:Pharmacy 1273:Medicine 1083:Affinity 1042:Efficacy 980:Analysis 962:Toxicity 689:"Ejecta" 675:29613104 610:25078422 339:See also 303:seabirds 223:creatine 166:, saps, 1224:Related 1167:(L)ADME 1121:Initial 1105:Metrics 1052:Potency 1035:Metrics 937:Binding 907:Binding 775:Agonist 666:5487197 601:4527031 535:4344886 513:Bibcode 351:Burping 314:insects 253:ammonia 221:), and 215:guanine 191:ammonia 156:stomata 98:urethra 94:bladder 70:kidneys 18:Excreta 1226:fields 673:  663:  608:  598:  533:  505:Nature 475:  448:  329:ejecta 280:lizard 148:Oxygen 140:plants 138:Green 88:expel 72:, and 1423:Other 1160:LADME 531:S2CID 484:6 May 331:. In 295:water 287:Birds 269:toxic 243:feces 239:urine 231:blood 227:clear 168:latex 164:resin 125:salts 90:urine 66:lungs 60:. In 1312:and 1236:and 1072:TD50 1068:LD50 1064:ED50 1060:IC50 1056:EC50 858:Drug 671:PMID 606:PMID 486:2013 473:ISBN 446:ISBN 307:beak 265:urea 241:and 217:(in 209:(in 201:(in 199:urea 193:(in 131:and 129:urea 82:cell 74:skin 1169:: ( 661:PMC 596:PMC 588:doi 521:doi 509:323 312:In 299:egg 213:), 205:), 197:), 1555:: 1070:, 1066:, 1062:, 1058:, 1019:, 1015:, 939:, 691:. 669:. 657:12 655:. 651:. 626:. 604:. 594:. 584:10 582:. 578:. 529:. 519:. 507:. 503:. 440:. 309:. 245:. 189:, 127:, 104:. 68:, 1198:) 1194:( 1173:) 1123:) 1119:( 1074:) 1054:( 1023:) 968:) 964:( 943:) 744:e 737:t 730:v 677:. 636:. 612:. 590:: 537:. 523:: 515:: 488:. 454:. 181:. 45:. 34:. 20:)

Index

Excreta
Elimination (pharmacology)

urinary system
metabolic waste
organisms
vertebrates
lungs
kidneys
skin
secretion
cell
placental mammals
urine
bladder
urethra
excretory system
Unicellular organisms
cellular respiration
metabolism
carbon dioxide
salts
urea
uric acid
plants
carbon dioxide
Oxygen
photosynthesis
stomata
guttation

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