EASY
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The end product of ornithine cycle is

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Important Questions on Excretory Products and Their Elimination

HARD
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
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>Modes of Excretion
The major nitrogenous excretory product in mammals is:
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Which of the following factors is responsible for the formation of concentrated urine?
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
The major excretory product of birds is:
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Nitrogenous waste is excreted in the form of pellet or paste by:
EASY
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Aquatic reptiles are:
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Uric acid is the excretory waste of
HARD
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
What is true of urea biosynthesis?
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Uricotelism is a method of conserving
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Formation of urea takes place in the _______
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
The characteristic that is shared by urea, uric acid and ammonia is/are

I. They are nitrogenous wastes.

II. They all need very large amount of water for excretion.

III. They are all equally toxic.

IV. They are equally present in the kidneys.
EASY
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Which of the following are uricotelic animals?
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
In ornithine cycle urea is synthesised when CO2 and NH3 combines with
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
In cockroach, nitrogenous waste is released in form of:
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
The ornithine cycle removes two waste products from the blood in liver. These products are
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Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion

Freshwater bony fishes maintain water balance by:

HARD
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because
MEDIUM
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
The principal nitrogenous excretory compound in humans is synthesized :
EASY
Biology>Human Physiology>Excretory Products and Their Elimination>Modes of Excretion
Which one of the following is likely to accumulate in a dangerous proportion in the blood of a person whose kidney is not working properly