The adrenal and pituitary glands put out the hormones aldosterone and vasopressin, respectively, and these hormones control the way the kidneys (organs) maintain the correct levels of sodium and water in the body.
The part of the brain called the hypothalamus detects water levels, and the pituitary gland secretes hormones to regulate it.
Adrenal gland
Adrenal cortex
testosterone
Pair of kidneys.
Aldosterone
kidney
Aldosterone
Aldosterone is the hormone produced by the adrenal gland which is responsible for salt (sodium) regulation of the body.
Aldosterone (a mineralocorticoid) regulates water and electrolyte (salt) balance in the extracellular fluid, mainly by regulating sodium ion reabsorption by kidney tubules. Antidiuretic hormone (ADH) causes the distal and collecting tubules of the kidney to reabsorb more water from the urinary filtrate, thereby reducing urine output and conserving body water.
active transport
Salt water is a hypertonic solution; therefore, the vacuole in the cell will shrink. The water in the cell's vacuole exits the plasma membrane to balance the solutions, and since the salt can not enter through the cells differentialy permeable membrane the cell is only loosing substance so it shrinks. When the elodea cells are in fresh water there is no reaction. Elodea is a fresh water plant
The pituitary gland, which is influenced by the hypothalmus region. The hypothalmus is responsible for monitoring the water levels in blood. If water levels are too low in the blood, ADH will be produced by the pituitary gland and released.
The hormone aldosterone helps maintain salt balance which is an ingredient in electrolyte. It does this by telling the kidneys to retain salt which then also then retains more water in the body.
They have salt glands which prevent an excessive amount of salt in the water from irritating the skin. The salt glands are found on the penguin's facial region.
Aldosterone is the hormone produced by the adrenal gland which is responsible for salt (sodium) regulation of the body.
Kidney
the sea turtle can drink salt water. this is possible because they have a special gland in their mouths that filters out the salt.
"They can drink salt water because their supraorbital gland filters excess salt from the bloodstream. The salt is excreted in a concentrated fluid from the nasal passages." http://en.wikipedia.org/wiki/Supraorbital_gland
I dont know about the control but the independent variable is the amount of salt water and the dependent variable is the amount of water and salt rendered.
Salt controls water absorption so the cells would gain water.
Adrenal gland hormones Aldosterone and Corticosteroid regulates salts in the circulatory system.
Because they need a certain balance between water and salt in order to survive.
No. Toys float better on salt water than on fresh water because salt water has higher density, and the ratio of density controls buoyancy.
- the taste of salt water is very disagreeable - the balance of electrolytes in the organism will be deeply disturbed