Give reasons:

A)Urine is more concentrated and yellowish in summers. 

B) The stomach is protected from HCl acid. 

Asked by adalroshan2464 | 9th Jul, 2019, 04:57: PM

Expert Answer:

A) Dark yellow urine indicates concentrated urine and the excretion of waste products in a smaller quantity of water. During summer, we sweat more in order to maintain our body temperature. So, more water is lost from our body. If we do not drink sufficient water, then there is a greater chance of excreting yellowish urine in summer.

B) The mucous cells and gastric pits produce mucosa. The stomach is protected by the epithelial cells, which produce and secrete a bicarbonate-rich solution that coats the mucosa. Bicarbonate is alkaline, a base, and neutralizes the acid secreted by the parietal cells, producing water in the process.

Answered by Sheetal Kolte | 10th Jul, 2019, 11:23: AM