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Excretory System MCQs | Excretory System Multiple Choice Questions and Answers

(1) In amoeba excretion takes place through the process of:
[A] Diffusion
[B] Infusion
[C] Uricotelic
[D] None of the above
Answer: Diffusion
(2) The major waste produced by human body are:
[A] Carbon dioxide
[B] Urea
[C] Both A and B
[D] Only B
Answer: Both A and B

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(3) In which of the following are the largest amounts of nitrogen excreted from a mammalian body?
[A] Breath
[B] Sweat
[C] Urine
[D] Faeces
Answer: Urine
(4) What types of nitrogenous wastes are excreted by living organisms?
[A] Ammonia
[B] Uric acid
[C] Urea
[D] All of the above
Answer: All of the above
(5) Which vessel carries blood to the kidneys?
[A] Renal Arteries
[B] Renal Vein
[C] Both A and B
[D] Only A
Answer: Only A
(6) The condition where urea accumulates in blood is ________
[A] Anemia
[B] Glycosuria
[C] Uremia
[D] Acidosis
Answer: Uremia
(7) What is glycosuria?
[A] Low amount of sugar in urine
[B] Average amount of sugar in urine
[C] Low amount of fat in urine
[D] High amount of sugar in urine
Answer: High amount of sugar in urine
(8) Inflammation of joint due to accumulation of uric acid crystals is called ____________
[A] Gout
[B] Osteoporosis
[C] Osteomalacia
[D] Myasthenia gravis
Answer: Gout
(9) About 90% of kidney stones can pass out through urinary system by drinking _______
[A] Water
[B] Juice
[C] Sugar drinks
[D] Milk
Answer: Water
(10) Which drug is indicated for pain related to acute renal calculi?
[A] Salicylates
[B] NSAIDS
[C] Narcotic analgesics
[D] Muscle relaxants
Answer: Narcotic analgesics
(11) Polystyrene sulfonate is used in renal failure to ___________
[A] Prevent constipation
[B] Reduce serum level
[C] Correct acidosis
[D] Exchange potassium ions
Answer: Exchange potassium ions
(12) What is the pH of the saliva?
[A] 3-5
[B] 7-8
[C] 5.5-6.2
[D] 6.2-7.4
Answer: 6.2-7.4
(13) Out of the following, which is a major secretory layer of the GI tract?
[A] Mucosa
[B] Submucosa
[C] Muscularis
[D] Serosa
Answer: Mucosa
(14) Name the type of secretory cell which secretes hydrochloric acid in the stomach?
[A] D-cell
[B] G-cell
[C] Mucous cell
[D] Parietal cell
Answer: Parietal cell
(15) Which of the following is NOT the function of the large intestine?
[A] Forming feces
[B] Absorb 90% of nutrients
[C] Defecating
[D] Absorbing some water, ions, and vitamins
Answer: Absorb 90% of nutrients
(16) Which of the following kidney function is NOT true?
[A] Regulate blood volume and composition
[B] Synthesize glucose
[C] Regulate blood pressure
[D] Defend the body against disease
Answer: Defend the body against disease
(17) Out of the following, which is the first step in urine production?
[A] Glomerular filtration
[B] Tubular secretion
[C] Tubular reabsorption
[D] Urinary bladder store urine
Answer: Glomerular filtration
(18) Which of the following hormone plays a major role in water reabsorption?
[A] Somatostatin
[B] Relaxasin
[C] Oxytocin
[D] Vasopressin
Answer: Vasopressin
(19) Which of the following is NOT the characteristics of the normal urine?
[A] Yellow or amber color
[B] Mildly aromatic
[C] 3-4 pH
[D] 1.001 to 1.035 specific gravity
Answer: 3-4 pH
(20) The number of uriniferous tubules in each kidney of man is
[A] About 10,000
[B] About 5,000
[C] Numerous
[D] About 1.0*106
Answer: About 1.0*106

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