Latest questions in this category.
The nephron is the functional unit of the kidney responsible for filtering blood and excreting nitrogenous waste in the form of urine.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Proteins are too large to pass through the filtration barrier and are normally absent in the glomerular filtrate.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Bony fishes and amphibians excrete ammonia directly into water as they require large amounts of water for excretion.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Sodium ions (Na+) are actively reabsorbed in the nephron to maintain osmotic balance and regulate blood pressure.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Glomerular filtration is a passive process driven by blood pressure in the glomerulus.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Nephridia in earthworms help in the removal of nitrogenous waste and play a role in osmoregulation.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Under normal conditions, proteins and blood cells are too large to pass through the filtration barrier.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
The juxtaglomerular apparatus secretes renin in response to low blood pressure, not high blood pressure.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
Nephridia are the excretory structures in annelids like earthworms, responsible for the removal of nitrogenous waste.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
The juxtaglomerular apparatus releases renin to regulate blood pressure and glomerular filtration rate.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
The Henle’s loop helps concentrate urine by maintaining an osmotic gradient in the medulla.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
The efferent arteriole carries blood away from the glomerulus after filtration.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Glomerular Filtration
