To convert ammonia into urea, the liver cells require .

Important Questions on Excretory Products and their Elimination

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Nitrogenous waste is excreted in the form of pellet or paste by:

HARD

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Match the items given in Column I with those in Column II and select the correct option given below:
 

	Column – I		Column – II (Part
	Function		Part of Excretory System)
a.	Ultrafiltration	i.	Henle’s loop
b.	Concentration of urine	ii.	Ureter
c.	Transport of urine	iii.	Urinary bladder
d.	Storage of urine	iv.	Malpighian corpuscle
		v.	Proximal convoluted tubule

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

The major nitrogenous excretory product in mammals is:

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Which of the following factors is responsible for the formation of concentrated urine?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

The pH of human urine is

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Why is urine amber coloured?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Which of the following substances is/are completely reabsorbed from the filtrate in the renal tubule under normal conditions?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Name the two major components of normal human urine.

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Explain the autoregulatory mechanism of GFR.

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Glomerular filtrate is

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Specific gravity of urine is normally in the range of

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Most of the useful substances from glomerular filtrate are reabsorbed in:

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Describe the hormonal feedback circuits in controlling renal functions.

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

What are the constituents of urine?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Hypotonic urine is present in?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Normal blood urea in man is

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Briefly state the mechanism of urine formation in human kidney.

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

The maximum amount of electrolytes and water (70 - 80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Urine Formation

Choose the option from the following that explains the function of glomerulus.