Excretory Products and their Elimination MCQs | Excretory Products and their Elimination Multiple Choice Questions (MCQs) and Answers

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Questions
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

Answer:Renalportal vein
3 Which hormone influence the activity of kidney?
A Vasopression
B Thyoxine
C Vasopression & aldosterone
D Gonadotrophin

Answer: Thyoxine
4 If liver frombody is removed then which component of blood increases
A Ammonia
B Protein
C Urea
D Uric acid

Answer: Ammonia
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

Answer:Conserve water
7 Animals which excrete urea are known as ____________
A Aminotelism
B Ureotelism
C Uricotelism
D Ammonotelism

Answer: Uricotelism
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

Answer: Hag fish
11 Sea gulls excrete salts from ___________
A Nasal chamber
B Liver
C Lungs
D Kidneys

Answer: Nasal chamber
12 Simultaneous movement of two molecules across a membrane in the same direction is known as _______
A Antiport
B Symport
C Uniport
D Biport

Answer: Symport
13 A condition in which body’s internal environment remains nearly constant is called as _________
A Homeostasis
B Hematoma
C Hemostasis
D Hemopoeisis

Answer: Homeostasis
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

Answer:Deamination
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

Answer: Excretion
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

Answer: Renal 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

Answer: Glutamine

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