Question

plz explain the 2 points in a simple way

Answer 1

explanation piont 1).
our body contains many ionic compounds that are useful to us but excess amount of them may harm us. eg. sulphuric compound is used in digestion but excess amount may harm us. thus excess sulphur is removed by excretion.

explanation no. 2)
by excretion the amount of water present in body is maintained by removal of excess water which may harm our organs.

hope u understood!

Answer 2

Hi

1. Maintaing Correct ionic balance in body means to maintaing electrolytes which helps in proper functioning of body. Electrolyte are present in the human body, and the balance of the electrolytes in our bodies is essential for normal function of our cells and our organs. Common electrolytes that are measured by doctors with blood testing include sodium, potassium, chloride, and bicarbonate. So in excretion these electrolytes are excreted if present in large quantity and reabsorbed if present in small quantity for example sodium is reabsorbed in nephrons during filtration and excreted in urine if present in large quantity.


2. The same case is there in the case of water if it is present in large quantity it is excreted in urine and if it is present in less quantity it is reabsorbed from faeses in large intestine and urination becomes less and urine becomes more yellow due to less concentration of water.


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