7 public questions tagged with this topic.
Small amounts of urea are excreted through sweat glands in the skin.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Micturition Disorders and Accessory Excretory Organs
Skin plays a role in excretion by eliminating small amounts of urea and salts through sweat.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Micturition Disorders and Accessory Excretory Organs
Uric acid is the least toxic nitrogenous waste and is excreted in a water-insoluble form.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Urea is only partially reabsorbed; most of it is excreted in urine.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Urea is only partially reabsorbed by the nephron; most of it is excreted in urine.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Uric acid is the least toxic nitrogenous waste and is excreted in a water-insoluble form.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Insect excretion is performed by Malpighian tubules, slender blind-ended tubules opening at midgut-hindgut junction, derived from endodermal or ectodermal origin depending on order. Epithelium actively transports potassium, uric acid, excess ions and nitrogenous wastes from hemolymph into lumen via active secretion, water follows osmotically, then hindgut and rectal glands reabsorb water and ions producing semi-dry frass. Tubule number ranges from two to over two hundred. Nephridia characterize annelids, antennal green glands crustaceans, coxal glands arachnids. Malpighian tubule-rectal complex supports uricotelism conserving water essential for terrestrial life.
Ref: NCERT Class 11 Biology, Chapter 7: Excretion Malpighian Tubules; Campbell Biology, 12th ed., Chapter 44
