The ornithine cycle removes two waste products from the blood in the liver. These products are
CO2 and urea
ammonia and urea
CO2 and ammonia
ammonia and uric acid
Match the items given in Column I with those in Column II and select the correct option given below:
Column I | Column II | ||
Function | Part of the Excretory system | ||
a | Ultrafiltration | i | Henle's loop |
b | Concentration of urine | ii | Ureter |
c | Transport of urine | iii | Urinary bladder |
d | Storage of urine | iv | Malpighian corpuscle |
v | Proximal convoluted tubule |
a | b | c | d |
iv | v | ii | iii |
a | b | c | d |
iv | i | ii | iii |
a | b | c | d |
v | iv | i | iii |
a | b | c | d |
v | iv | i | ii |
Which of the following statements is correct?
The ascending limb of loop of Henle is impermeable to water
The descending limb of loop of Henle is impermeable to water
The ascending limb of loop of Henle is permeable to water
Statement I. The renal fluid becomes increasingly concentrated, when it flows down in the descending limb of loop of Henle towards inner medulla, but its concentration decreases in the ascending limb, when it flows towards the cortex.
Statement II. The descending limb of the loop of Henle water is reabsorbed; the ascending limb is impermeable to water, but salts are absorbed.
Statement I is correct, but Statement II is incorrect
Statement II is correct, but Statement I is incorrect
Both statements are correct
Both statements are incorrect
Which part of the nephron is impermeable to water
Proximal convoluted tubule
Distal convoluted tubule
Ascending limb of loop of Henle
Descending limb of loop of Henle
A hormone, secreted by the endocrinal cells of duodenal mucosa which influences the releases of pancreatic juice is
relaxin
cholecystokinin
Secretin
Progesterone