AP BIOLOGY

THE CELL

TRANSPORT INTO AND OUT OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do humans osmoregulate?
A
With use of the contractile vacuole.
B
By filtering water in the nephron in the kidney.
C
Through sweating out pores.
D
Humans are not osmoregulators.
Explanation: 

Detailed explanation-1: -Osmoregulation is the process of maintaining homeostasis of the body. It facilitates the diffusion of solutes and water across the semi-permeable membrane thereby maintaining osmotic balance. The kidney regulates the osmotic pressure of blood through filtration and purification by a process known as osmoregulation.

Detailed explanation-2: -Kidneys regulate the osmotic pressure of a mammal’s blood through extensive filtration and purification in a process known as osmoregulation. All the blood in the human body is filtered many times a day by the kidneys. These organs use almost 25 percent of the oxygen absorbed through the lungs to perform this function.

Detailed explanation-3: -Osmoregulation is a homeostatic mechanism that mainly balances the concentration of water and salt across the human body in the following ways: If the salt concentration is high and that of water is low in the body, the urine formed is hypertonic. This results in the prevention of any further loss of water.

Detailed explanation-4: -The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes. Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out additional wastes.

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