Explains the three main modes of excretion based on the form in which nitrogenous waste is eliminated: ammonia, urea, or uric acid.
Ammonia is highly toxic and requires large amounts of water for its elimination, which is why it is excreted by aquatic organisms.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Aquatic amphibians are ammonotelic, meaning they excrete ammonia, which requires large amounts of water for elimination.
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
Reptiles and birds excrete uric acid as a semisolid paste to conserve water.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Uric acid is a nitrogenous waste product formed from the metabolism of nucleic acids.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Ammonia is highly toxic and requires a large amount of water for its elimination, which is why it is excreted by ammonotelic animals like bony fishes.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Mammals are ureotelic, excreting urea as their primary nitrogenous waste.
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 as a semi-solid paste with minimal water loss, mainly in birds and reptiles.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Glucose is completely reabsorbed in the proximal convoluted tubule unless blood glucose levels exceed the renal threshold.
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 with minimal water loss.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Reptiles and birds are uricotelic, meaning they excrete uric acid to conserve water.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
Ammonia is highly toxic and requires a large amount of water for its elimination, which is why it is excreted by ammonotelic animals like bony fishes.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
