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Which one of the following is not present in the filtration slit diaphragm? (1) NEPH1 (2) Paxillin (3) Nephrin (4) NEPH2 The filtration slit diaphragm in the kidney glomerulus is […]

Filtration slits are formed by (1) podocytes (2) endothelial cells of capillary (3) mesangial cells (4) Lacis cells Filtration slits are crucial microscopic structures in the kidney’s filtration barrier, playing […]

Desert rattlesnakes live in extremely dry environment. In order to conserve body water, they are adopted to convert ammonia to (1) urea. (2) purines. (3) uric acid (4) amino acids. […]

On investigating the excretory organs of an organism that was found in an office backyard, the following structures were identified. A funnel-like structure to collect the waste, duct-like structures to […]

The following statements are related to excretion in invertebrates: A. Flame cells are found in molluscs and jelly fish. B. Nephridia and Malpighian tubules convert ammonia to urea for water […]

Glucose is never seen in urine because it is mainly absorbed by (1) Proximal convoluted tubule (2) Collecting duct (3) Ascending loop of Henle (4) Glucose never enter into Bowman’s […]

Concentration of urine in mammals depends on (1) Glomerulus’s size (2) Length of Henley’s loop (3) volume of blood (4) Size of organism Urine concentration is vital for mammals to […]

Uricotellism is an adaptation for (1) Conserving water (2) Conserving salt (3) High altitudes (4) Marine habitats Uricotelism is a specialized form of nitrogenous waste excretion where organisms eliminate nitrogen […]

Among the following which groups of organisms are not uricotelic? (1) Mammals (2) Birds (3) Reptiles (4) Insects In the animal kingdom, the excretion of nitrogenous waste is a critical […]

Which of the following organism predominantly excrete uric acid as nitrogen waste? (1) Human (2) Fish (3) Frog (4) Bird Among vertebrates, the method of nitrogenous waste excretion varies, reflecting […]