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Rabbit Excretory System - sakshieducation.com

Rabbit Excretory System - sakshieducation.com

Rabbit Excretory System -

Very Short Answer Questions www.sakshieducation.com Rabbit Excretory System 1. Differentiate vertebrates on the basis of nitrogenous waste products giving examples. Ans. Vertebrates are divided into three categories based on nitrogenous waste excretory products. They are a. Ammonotelic animals: Nitrogenous waste products are Ammonia. e.g. Some bony fishes b. Ureotelic animals: Nitrogenous waste products are in the form of urea e.g. Cartilagenous fishes, amphibians and mammals. c. Uricotelic animals: Nitrogenous waste products are excreted in the form of uric acid. e.g. Reptiles and birds 2. Name the blood vessels that enter and exit the kidney. Ans. Renal artery enters the kidney and renal vein comes out of the kidney. 3. What are renal pyramids and renal papillae? Ans. The conical shaped medullary regions into calyces of kidney are the renal pyramids. Tips of the renal pyramids which open into pelvis are renal papillae. 4. Name the structural and functional unit of kidney. What are the two main parts in it? Ans. The structural and functional unit of kidney is Nephrons. Two main parts are (1) Malpighian body, (2) Convoluted tubule. 5. Which part of nephrons is impermeable to water? Ans. The ascending limb of Henle’s loop is impermeable to water. 6. What are the columns of Bertini? Ans. Cortical spreads among the renal pyramids are columns of Bertini. 7. Define glomerular filtration. Ans. The process of filtration which occurs between glomerulus and Bowman’s capsule due to difference in net pressure is glomerular filtration. The filtered fluid which entered the Bowmans capsule is renal fluid or primary urine or glomerular filtrate which is hypotonic. 8. Distinguish between Cortical and medullary nephrons. Ans. Cortical nephrons have renal corpuscle in the superficial renal cortex. They have short Loop of Henle but without vasa recta. Renal corpuscles of juxtmedullary nephrons are located near the renal medulla. They have loop of Henle and vasa recta. www.sakshieducation.com

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