Explains the initial step in urine formation where blood is filtered through the glomerulus to produce filtrate.
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
