Urine Formation
Urine Formation: Overview
This topic covers concepts, such as, Physiology of Excretion, Urine Formation, Glomerular Filtration, Tubular Reabsorption, Tubular Secretion & Urine etc.
Important Questions on Urine Formation
Glucose contained by Glomerular filtrate compared to plasma is
A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of:
The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
About 90% of water is reabsorbed in PCT.
Name the organ in which the ornithine cycle occurs.
The amount of urine produced depends on the amount of water that is reabsorbed from the glomerular filtrate in the renal tubules.
Which one of the following statements in regard to the excretion by the human kidneys is correct?
Reabsorption of useful substances back into the blood from the filtrate in a nephron occurs in:
Or
The part of nephron involved in the active reabsorption of sodium is:
Which one do not filter out from blood to Bowman's capsule in glomerular ultrafiltration
Glomerular hydrostatic pressure is present in
The amino acid that acts as a carrier of ammonia from skeletal muscle to liver
Maintenance of body potassium level is primarily by tubular
Identify the biological term for A process that changes glomerular filtrate into urine from the options given below:
Homeostasis, excretion, glomerulus, urea, glomerular filtration, ureters, urine, Bowman's capsule, urinary system, reabsorption, micturition, osmosis, glomerular capillaries via efferent arteriole, proteins, glomerular filtrate, urinary bladder.
The Bowman's capsule is made of a double-walled cup-shaped structure that performs selective reabsorption.
Choose the incorrect combinations with respect to urine formation from the following.
| Part of Nephron | Selective reabsorption | Secretion | |
| (A) | Distal convoluted tubule | Facultative reabsorption of and |
and |
| (B) | Descending limb of the loop of Henle | by passive transport | Impermeable to electrolytes |
| (C) | Proximal convoluted tubule | and ions | and urea |
| (D) | Collecting duct | and | Ammonia and |
Which of the following features best suits to a healthy/normal individuals urine:
Which of the following pathway converts ammonia into urea in ureotelic animals
The yellow colour of urine of vertebrate is due to
Which of the following is recovered in the collecting duct of the nephron?
Blood fraction remaining unchanged after circulation through kidney is
