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Free download in PDF Excretory Products and their Elimination Multiple Choice Questions (MCQs) and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The two kidneys lie:
[A]
At the level of ovaries
[B]
At the same level
[C]
Left kidneyat a higher level than the right one
[D]
Right kidneyat a higher level than the left one
Answer: At the same level
(2)
Which blood vessel takes blood awayfrom kidney?
[A]
Renalportal vein
[B]
Renalvein
[C]
Afferent arteiote
[D]
Efferent artribute
(3)
Which hormone influence the activity of kidney?
[A]
Vasopression
[B]
Thyoxine
[C]
Vasopression & aldosterone
[D]
Gonadotrophin
(4)
If liver frombody is removed then which component of blood increases
[A]
Ammonia
[B]
Protein
[C]
Urea
[D]
Uric acid
(5)
Uricotelism is found in ____________
[A]
Birds reptiles and insects
[B]
Frogs and toads
[C]
Mammals and birds
[D]
Fishes and fresh water protozoans
Answer: Mammals and birds
(6)
A terrestrial animal must be able to ________
[A]
Excrete large amount of water
[B]
Actively pump salts through skin
[C]
Excrete large amount of salts in urine
[D]
Conserve water
(7)
Animals which excrete urea are known as ____________
[A]
Aminotelism
[B]
Ureotelism
[C]
Uricotelism
[D]
Ammonotelism
(8)
Which of the following nephridia are not found in earthworm?
[A]
Septal nephridia
[B]
Macronephric nephridia
[C]
Pharyngeal nephridia
[D]
Integumentary nephridia
Answer: Macronephric nephridia
(9)
Excretory waste of birds and reptiles are _________
[A]
Ammonia and uric acid
[B]
Uric acid
[C]
Uric acid and urea
[D]
Urea
Answer: Ammonia and uric acid
(10)
Which of the following is the only vertebrate osmoconformer?
[A]
Bird
[B]
Hag fish
[C]
Rabbit
[D]
Dog
(11)
Sea gulls excrete salts from ___________
[A]
Nasal chamber
[B]
Liver
[C]
Lungs
[D]
Kidneys
(12)
Simultaneous movement of two molecules across a membrane in the same direction is known as _______
[A]
Antiport
[B]
Symport
[C]
Uniport
[D]
Biport
(13)
A condition in which body’s internal environment remains nearly constant is called as _________
[A]
Homeostasis
[B]
Hematoma
[C]
Hemostasis
[D]
Hemopoeisis
(14)
The presence of arginase confirms that ___________
[A]
Urea cycle is operating
[B]
Arginine is being converted to ornithine
[C]
Urea cycle maybe operating
[D]
Arginine is being converted to citrulline
Answer: Arginine is being converted to ornithine
(15)
Removal of amino group to transform into keto acid is called ___________
[A]
Transamination
[B]
Deamination
[C]
Ammonofication
[D]
Amination
(16)
In the ornithine cycle which of the following waste is removed from the blood?
[A]
Urea and urine
[B]
Carbon dioxide and urea
[C]
Ammonia and carbon dioxide
[D]
Ammonia and urea
Answer: Ammonia and carbon dioxide
(17)
The function of flame cell is ____________
[A]
Excretion
[B]
Digestion
[C]
Respiration
[D]
Reproduction
(18)
Urea is directly produced in mammals from ___________
[A]
Breakdown of arginine
[B]
Oxidative deamination of proteins
[C]
Breakdown of ornithine
[D]
Ammonia released by oxidative deamination
Answer: Ammonia released by oxidative deamination
(19)
Which blood vessel carries the least amount of urea?
[A]
Pulmonary vein
[B]
Renal artery
[C]
Renal vein
[D]
Hepatic portal vein
(20)
The amino acid that acts as carrier of ammonia from skeletal muscle to the liver is ____________
[A]
Alanine
[B]
Glutamine
[C]
Methionine
[D]
Arginine
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