A) \[N{{a}^{+}}\] ions help in stopping nerve impulses and hence, sensation of pain
B) \[N{{a}^{+}}\] ions help in the retention of water in the body tissues
C) \[NaCl\] is an important component of energy supply
D) \[NaCl\] furnishes mot of the fuel required for cellular activity
Correct Answer: B
Solution :
Severe diarrhoea, vomitting, watery stools are the chief symptoms of cholera. All these lead to dehydration. Actually, cholera toxin secreted by Vibrio cholerae causes, through a series of metabolic reactions, the continuous activation of adenylate cyclase of intestinal epithelial cells. The resultant high concentration of c-AMP triggers continuous secretion of \[C{{l}^{-}},\,HCO_{3}^{-}\]and water into the lumen of the intestine. Administration of saline not only supports the sodium-potassium pump through which water in cell is restored, but glucose is also symported along with sodium.
You need to login to perform this action.
You will be redirected in
3 sec
