Correct option is D
The correct answer is (d) Aquaporins.
· Aquaporins are specialized channel proteins that facilitate the transport of water molecules across cell membranes. They are crucial for maintaining water homeostasis in cells and tissues.
· These proteins selectively allow water to move in and out of cells, responding to osmotic gradients created by active solute transport.
· Aquaporins play an essential role in various physiological processes, including kidney function, plant water regulation, and maintaining fluid balance in the body.
Information Booster:
· Transferrin: A glycoprotein that binds and transports iron in the bloodstream, playing a key role in iron metabolism and homeostasis.
· Cupredoxins: A family of copper-containing proteins involved in electron transport and redox reactions in various biological processes, such as photosynthesis and cellular respiration.
· Mucins: High molecular weight glycoproteins that form gels; they are a key component of mucus, providing lubrication and protection to epithelial surfaces in the respiratory, gastrointestinal, and reproductive systems.