ADH controls water permeability of
collecting tube
proximal convoluted tubules
distal convoluted tubules
all of the above
C.
distal convoluted tubules
The vasopressin hormone, secreted by neurohypophysis of pituitary gland promotes the reabsorption of water from the distal convoluted tubules of nephrons, reducing excretion of water in urine (diuresis). Hence, it is called Antidiuretic Hormone (ADH). Its release in blood is controlled by an 'osmoregulatory centre' located in hypothalamus. Hyposecretion of ADH causes diabetes incipidus.
At high altitude, RBC's of human blood will
increase in number
decrease in number
decrease in size
increase in size
Arachidonic acid is
non-essential fatty acid
essential fatty acid
poly unsaturated fatty acid
both 'b' and 'c'
The true stomach in ruminants where most of digestion takes place is
rumen
omasum
reticulum
abomasum
Which of the following amino acids are present in ornithine cycle
Valine and cystine
Arginine and citrulline
Glycine and methionine
None of these