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Biology
Mechanism of urine formation
Where is urine stored until it drains from the body?
Biology
Mechanism of urine formation
Is glomerular filtrate: clear in appearance and contains no glucose; a concentrated solution of waste products; identical to blood plasma; blood plasma that lacks most proteins; or is it whole blood?
Biology
Mechanism of urine formation
Concentration of urine is controlled by:
A) ACTH
B) MSH
C) ADH
D) Oxytocin
Biology
Mechanism of urine formation
: Which of the following is true for glycosuria?
A. Low amount of sugar in urine
B. Low amount of fat in urine
C. Average amount of carbohydrate in urine
D. High amount of sugar in urine
Biology
Mechanism of urine formation
Which one of the following components of urine in a healthy human does not differ much in concentration from that of blood plasma?
A. \[N{H_4}^ + \]
B. \[{K^ + }\]
C. \[N{a^ + }\]
D. \[S{O_4}^{2 - }\]
Biology
Mechanism of urine formation
ADH controls water permeability of
A. Collecting tube
B. Proximal convoluted tube
C. Distal convoluted tube
D. All the above
Biology
Mechanism of urine formation
The complete reabsorption of glucose takes place in
A) Collecting tubule
B) Distal tubule
C) Proximal convoluted tubule
D) None of the above
Biology
Mechanism of urine formation
What are the different stages in urine formation? Explain what happens in those stages.
Biology
Mechanism of urine formation
 Assertion: The renal threshold of glucose is said to be 180 mg per 100 ml.
Reason: Glucose starts appearing in the urine when its blood level exceeds 180 mg per 100 ml of blood.
(a) Both Assertion and Reason are correct and the Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are correct but the Reason is not a correct explanation of Assertion.
(c) Assertion correct but Reason is incorrect.
(d) Both Assertion and Reason and incorrect.
Biology
Mechanism of urine formation
Give a brief account of the countercurrent mechanism.
Biology
Mechanism of urine formation
Which vitamin is excreted out in high quantity through urine in man?
A. Vitamin C
B. Vitamin B
C. Vitamin E
D. Vitamin K
Biology
Mechanism of urine formation
Glucose is taken back from glomerular filtrate through
A. Active transport
B. Passive transport
C. Osmosis
D. Diffusion
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