Water Channels

Definition

Water channels, also known as aquaporins, are proteins that form pores in the cell membrane to facilitate the transport of water in and out of cells.

Scientific / Technical Definition

Water channels are a class of integral membrane proteins known as aquaporins that facilitate selective and rapid water transport across cellular membranes, playing a critical role in maintaining cellular and systemic water balance. They are involved in various physiological processes, including kidney function, glandular secretion, and homeostatic regulation.

Benefits

• Maintain proper hydration levels in the body.
• Support kidney function and urine formation.
• Assist in the regulation of bodily fluids.
• Facilitate nutrient transport and waste removal at the cellular level.

Examples

• Aquaporin 1 (AQP1) in the kidneys for water reabsorption.
• Aquaporin 4 (AQP4) in the brain for regulation of water homeostasis.

Additional Information

• importance: Water channels are important for maintaining proper hydration and managing the body's water homeostasis. They play a crucial role in ensuring that tissues receive adequate water supply and help in the efficient functioning of organs, especially in response to physiological demands and environmental conditions.

Related Terms

• Hydration
• Aquaporins
• Cell Membrane
• Osmosis

References

• The Role of Aquaporins in Physiology and Medicine
• Aquaporins: From Early Theories to Modern Biophysics