31. Functional & structural unit of kidney is

A Nephron
B Seminiferous tubule
C Acini
D None of the above
Answer :   Nephron
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32. Which of the following factors is responsible for the formation of concentrated urine ?

A Low levels of antidiuretic hormone
B Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys
C Secretion of erythropoietin by juxtaglomerular complex
D Hydrostatic pressure during glomerular filtration
Answer :   Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys
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33. Which is false

A Nephron-Excertion
B Alveoli-Respiration
C Kidney-Osmoregulation
D Renin-Zymogen
Answer :   Renin-Zymogen
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34. Brush border is characteristic of

A neck of nephron
B collecting tube
C proximal convoluted tubule
D all the above
Answer :   proximal convoluted tubule
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35. Contractile vacuole of Amoeba is equal to

A Kidney
B Liver
C Intestine
D Skin
Answer :   Kidney
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36. In kidney glomerulus is involved in

A Reabsorption of salts
B Urine collection
C Urine formation by blood filtration
D All of the above
Answer :   Urine formation by blood filtration
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37. Characteristic smell of urine is due to

A Urea
B Uric acid
C Urinod substance
D None of the above
Answer :   Urinod substance
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38. Complete loop of Henle is found in

A Amphibia
B Reptilea
C Birds
D Mammals
Answer :   Mammals
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39. In cortex area of kidney all structure are found except

A Bowman capsule
B D.C.T.
C Majority of collecting duct
D Malphighian body
Answer :   Majority of collecting duct
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40. A notch present on the medial side of kidney is known as

A Ureter
B Pelvis
C Hilus
D Pyramid
Answer :   Hilus
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