Biology Questions

Aldosterone is a key steroid hormone critical for maintaining salt and water balance. It regulates the concentration of minerals, like sodium and potassium, in the fluid outside your cells. When your sodium levels drop, or potassium levels rise, your body signals your adrenal glands to release aldosterone into your blood. Aldosterone signals your kidneys to reabsorb sodium into the blood, and acts on your sweat glands to reduce sodium loss through sweat.

Protein monomers that are held together with covalent bonds to form cytoskeletal filaments is the false statement about the cytoskeleton in the given options.

The condition of blockage of the artery due to plaque deposition in the walls which can lead to stroke or heart attack is called Atherosclerosis.

Whereas,

The condition in which the stiffening or hardening of the arteries is called as Arteriosclerosis.

Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none.

In the given options, They increase amplitude as they move away from the stimulus point is not true about the graded potentials.