Question

Which of the following hormones acts as antagonist to aldosterone?
A.FSH
B.Testosterone
C.Progesterone
D.ANP

Answer 1

Aldosterone is a steroid hormone that is produced by the adrenal gland and is essential in the kidney for sodium conservation. The Atrial Natriuretic Polypeptide (ANP) is a peptide hormone and it increases the loss of sodium in the kidney.

Complete answer: The hormone acting as an antagonist to aldosterone means that the hormone is having the opposite function of aldosterone. The ANP that is atrial natriuretic polypeptide has the opposite function to that of the aldosterone. The aldosterone increases sodium retention in the kidney and the ANP increases the loss of sodium renal sodium. ANP is derived from its source that is atrial and the physiological effect which is the excretion of the sodium and the peptide nature. It is an anti hypersensitive hormone and it is also for the regulation of blood pressure. The peptide hormones are hydrophilic and they are capable of diffusing the blood plasma, whereas the steroid hormones are hydrophobic which are not able to diffuse in the blood plasma
Hence, the correct option is ‘D’ ANP

Note: The Atrial Natriuretic Polypeptide (ANP) is a peptide hormone and aldosterone is a steroid hormone. The peptide hormones are hydrophilic and they are capable of diffusing the blood plasma, whereas the steroid hormones are hydrophobic which are not able to diffuse in the blood plasma. The ANP is secreted by the heart and it works to decrease the pressure.