41. The cavity of Bowman's capsule contain

A Urea, glycogen and water
B Urea and water
C Blood plasma except blood protein
D Concentrated blood
Answer :   Blood plasma except blood protein
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42. If Henle's loop were absent from mammalian nephron, which of the following is to be expected?

A The urine will be more dilute
B There will be no urine formation
C There will be hardly any change in the quality and quantity of urine formed
D The urine will be more concentrated
Answer :   The urine will be more dilute
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43. Glucose is taken back from glomerular filtrate through

A Active transport
B Passive transport
C Osmosis
D Diffusion
Answer :   Active transport
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44. Mammals are characterized by

A Metanephirc kidney with loop of Henle
B Mesonephric kidney with out Henle loop
C Metanephric kidney without Henle loop
D Proanephric without Henle loop
Answer :   Metanephirc kidney with loop of Henle
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45. Which of the following would help in prevention of diuresis?

A Reabsorption of Na+ and water from renal tubules due to aldosterone
B Atrial natriuretic factor causes vasoconstriction
C Decrease in secretion of renin by JG cells
D More water reabsorption due to undersecretion of ADH
Answer :   Reabsorption of Na+ and water from renal tubules due to aldosterone
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46. Which one of following is the simplest excretory organs

A Alveoli
B Flame cells
C Nephridia
D Kidney
Answer :   Flame cells
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47. Uric acid is the main excretory product in

A Insects
B Earthworm
C Amphibians
D Mammals
Answer :   Insects
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48. Reabsorption of useful substances from glomerular filtrate occurs in

A Collecting tube
B Loop of Henle
C Proximal convoluted tubule
D Distal convoluted tubule
Answer :   Proximal convoluted tubule
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49. Part not belonging to uriniferous tubule is

A Glomerulus
B Henle's loop
C Distal convoluted tubule
D Connecting tubule
Answer :   Glomerulus
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50. Urea is formed in liver from

A Ammonia and nitrogen
B Ammonia and carbon dioxide
C Ammonia, carbon dioxide and aspartic acid
D Ammonia and carbon monoxide
Answer :   Ammonia, carbon dioxide and aspartic acid
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