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| 286)Removal of metabolic waste in the form of ures is called | |||
| Ureotelism | Uricotelism | ||
| Aminotelism | Ammoniotelism | ||
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| 287)The means which is used by fresh water organisms to prevent net water gain or loss of body salt is | |||
| Lonocytes | Contractile vacuole | ||
| Large volume of dilute urine | All of these | ||
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| 288)The smallest functional unit of kidney is | |||
| Bowman's capsule | Collecting tube | ||
| Nephron | Glomerulus | ||
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| 289)Fresh water fish maintain osmoregulation by | |||
| Taking both water and salt from the environmnet | Continuously taking in water and elomination excess of salt | ||
| Eliminatiing excess of water and taking up salts from the environment | Eliminating both salt and water into the environment | ||
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| 290)Antennary of green glands which are excretory and osmoregulatory organs of crustacean consist of | |||
| Renal sac | End sac | ||
| Lateral and transverse ducts | Antenna | ||
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| 291)Collecting tubes or duct combine to form | |||
| Bidder's canal | Duct of Bellini | ||
| Ureter | Columns of Bertin | ||
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| 292)Which one of the following produced in the kidneys? | |||
| Uricase | Arginase | ||
| Rennin | Renin | ||
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| 293)Which of the following vitamins is excreted by urine in higher vertebrates? | |||
| Vitamin K | Vitamin D | ||
| Vitamin C | Vitamin A | ||
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| 294)Brush border surface can be taken as the characteristics feature of | |||
| DCT | PCT | ||
| Loop of Henle | Bowman's capsule | ||
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| 295)Divalent cations are generally eliminated in marine fishes through | |||
| Anal membrane | Oral membrane | ||
| Gill membrane | Faecal matter | ||
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| 296)Flame cells are excretory structures of | |||
| Arthropoda | Flat worms | ||
| Annelida | Crustaceans | ||
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| 297)The mechanism that will operate mainly to check variation in flow to the glomerulus in case of fluctuation in blood pressure is | |||
| Adam's stoke condition | Counter current mechanism | ||
| Myogenic mechanism | None of these | ||
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| 298)Which one of the following controls reabsorption of Na+? | |||
| Aldosterone | Renin | ||
| Rennin | None of these | ||
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| 299)Which one of the following is correct glomerular filtration rate? | |||
| 180 litre per day | 125 litre per day | ||
| 250 litre per day | 180 ml per hour | ||
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| 300)Which one of the following controls the reabsorption of water in the kidneys? | |||
| LH | ADH | ||
| ACTH | STH | ||
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