Excretory Products and their Elimination Objective Questions
- Presence of RBCs in urine is
(a) Uremia
(b) ketonuria
(c) Glucosuria
(d) hematuria
Answer: (d) hematuria
- Ornithine cycle leads to the formation of
(a) NH3
(b) ((NH2)2)CO)
(c) C5H4N4O3
(d) C5H4N4
Answer: (b) ((NH2)2)CO)
- The yellow pigment derived from heme breakdown and excreted by kidneys is
(a) Uric acid
(b) Urochrome
(c) Cholesterol
(d) Melanin
Answer: (b) Urochrome
- What happens when glomerular filteration rate falls?
(a) Activation of podocytes
(b) Release of renin
(c) Repression of juxta glomerular cells
(d) None of the above
Answer: (b) Release of renin
- Which of the following can be cured by hemodialysis?
(a) Renal calculi
(b) Glomerulonephritis
(c) Uremia
(d) All of these can be cured by hemodialysis
Answer: (c) Uremia
- Kidneys are located in
(a) thoracic cavity
(b) abdominal cavity
(c) body cavity
(d) pelvic cavity
Answer: (b) abdominal cavity
- The muscular tubes which take the urine from the kidneys to the bladder are
(a) Urinary bladders
(b) Ureters
(c) Urethras
(d) Nephrons
Answer: (b) Ureters
- Most water and salts are reabsorbed in
(a) DCT
(b) Bowman s capsule
(c) PCT
(d) DCT and PCT
Answer: (c) PCT
- Reabsorption of filterate occurs in
(a) renal tubules
(b) glomerular apparatus
(c) medullary pyramid
(d) juxta cells
Answer: (a) renal tubules
- JG cells release
(a) angiotensin II
(b) aldosterone
(c) renin
(d) ANF
Answer: (c) renin
- pH of human urine is
(a) 7.0
(b) 6.5
(c) 6.0
(d) 7.5
Answer: (b) 6.5
- Average blood filtered by kidneys per minute is
(a) 1000 – 1500 mL
(b) 500 – 600 mL
(c) 200 – 300 mL
(d) 1100 – 1200 mL
Answer: (d) 1100 – 1200 mL
- Kidneys are located in
(a) thoracic cavity
(b) abdominal cavity
(c) body cavity
(d) pelvic cavity
Answer: (b) abdominal cavity
- Which one of the following statements in regard to the excretion by the human kidneys is correct?
(a) Ascending limb of Loop of Henle is impermeable to electrolytes
(b) Descending limb of Loop of Henle is impermeable to water
(c) Distal convoluted tubule is incapable of reabsorbing HCO3
(d) Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules
Answer: (d) Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules
- In the kidneys, osmotic pressure controls ______.
(a) Glucose absorption
(b) Sodium absorption
(c) Water absorption
(d) none of these
Answer: (c) Water absorption
- Presence of __________ in urine indicates diabetes mellitus.
(a) Glucose
(b) Cholesterol
(c) Ketone bodies
(d) Both 1 and 3
Answer: (d) Both 1 and 3
- If a man takes large amount of protein, he is likely to excrete more amount of
(a) Glucose
(b) Urea and uric acid
(c) Water
(d) Salts
Answer: (b) Urea and uric acid
- Nerves, blood vessels and ureter enters into the kidney through
(a) calyces
(b) hilum
(c) capsule
(d) cortex
Answer: (b) hilum
- The principal nitrogenous excretory compound in humans is synthesized
(a) In the liver but eliminated mostly through kidneys
(b) In kidneys but eliminated mostly through liver
(c) In kidneys as well as eliminated by kidneys
(d) In liver and also eliminated by the same through bile
Answer: (a) In the liver but eliminated mostly through kidneys
- The renal medulla consists of cone-shaped tissue masses called _______.
(a) Renal pyramid
(b) Adipose capsule
(c) Renal cortex
(d) Renal pelvis
Answer: (a) Renal pyramid
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