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Excretion MCQs | Excretion Multiple Choice Questions and Answers

(1) 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
(2) 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

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(3) 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
(4) Which of the following is the only vertebrate osmoconformer?
[A] Bird
[B] Hag fish
[C] Rabbit
[D] None of the above
Answer: Hag fish
(5) Sea gulls excrete salts from ___________
[A] Nasal chamber
[B] Liver
[C] Lungs
[D] Kidneys
Answer: Nasal chamber
(6) Simultaneous movement of two molecules across a membrane in same direction is known as _______
[A] Antiport
[B] Symport
[C] Uniport
[D] Biport
Answer: Symport
(7) The weight of each kidney in grams is about
[A] 90 -130
[B] 100 – 140
[C] 110 – 150
[D] 120 – 170
Answer: 120 – 170
(8) The function of kidney is regulated by the hor¬mone
[A] Aldosterone
[B] Parathormone
[C] Vasopressin
[D] All of the above
Answer: All of the above
(9) The colour of urine is dark brown due to
[A] Methemoglobin
[B] Homogentisic acid
[C] Both of above
[D] None of the above
Answer: Both of above
(10) Strongly acid urine is pink due to the precipita¬tion of
[A] Chloride salts
[B] Ammonium salts
[C] Uric acid salts
[D] None of the above
Answer: Uric acid salts
(11) Creatine excretion is also found in
[A] Starvation
[B] Hyperthyroidism
[C] Infections
[D] All of the above
Answer: All of the above
(12) The number of mg of amino acid nitrogen ex¬creted in the urine of adults daily is about
[A] 125- 180
[B] 150 – 200
[C] 160 – 240
[D] 180 – 280
Answer: 150 – 200
(13) The amino acids excreted in urine in cystinuria
[A] Arginine
[B] Cystine
[C] Lysine
[D] All of the above
Answer: All of the above
(14) Phosphate excretion is increased in
[A] Osteomalacia
[B] Wasting diseases of the nerv¬ous system
[C] Renal tubular rickets
[D] All of the above
Answer: All of the above
(15) Sodium and potassium excretion are controlled by the activity of
[A] Adrenal medulla
[B] Adrenal cortex
[C] Thy¬roid
[D] None of the above
Answer: Adrenal cortex
(16) The number of mg of protein present in normal urine cannot be detected by the ordinary simple tests
[A] 30 – 200
[B] 50 – 250
[C] 80 – 380
[D] 100 -400
Answer: 30 – 200
(17) The excretion of oxalate is increased by inges¬tion of
[A] Fruits
[B] Vegetables
[C] Both of the above
[D] None of the above
Answer: Both of the above
(18) Decrease in phosphate excretion is observed in
[A] Hypoparathyroidism
[B] Infectious diseases
[C] Both of the above
[D] None of the above
Answer: Both of the above
(19) The greater part of the excreted phosphates is derived from ingested food.
[A] Nucleoprotein
[B] Phosphoprotein
[C] Phos¬pholipids
[D] All of the above
Answer: All of the above
(20) The number of mg of indican excreted normally
[A] 5 – 20
[B] 8 – 25
[C] 10 – 30
[D] 15 – 40
Answer: 5 – 20

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