How does adh work and what does it do?
a. it binds to the collecting tubules in the kidney, opening pores to allow water to flow back out of the kidney into the blood.
b. it binds to blood cells, making them more porous to water so it more easily diffuses back into them and is not lost in urine filtration.
c. it binds to water molecules, making them too large to diffuse out of the blood stream, retaining water when the body needs it.
d. it binds to nerve cells in hypothalamus, signaling that the body is dehydrated and should retain water.
e. it binds to the kidney tubules, making them less porous to water so less water filters out.

The correct answer will be option-A.

Explanation:

ADH or anti-diuretic hormone is a chemical messenger produced by the hypothalamus in response to the water level in the blood, maintain blood pressure.

ADH is released in response to the osmolarity of the blood that is a low amount of water which is perceived by the osmorecpetors in neurons. The low level of water leads to the production of ADH from neurons which binds to the ADH receptors in the collecting tubules of the kidneys.

They allow insertion of aquaporins-2 in the membrane which allow re-absorption of the water to maintain the water level of the body.

Thus, option-A is the correct answer.

the correct answer is b. possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes.

explanation:

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.