Albumin
a. is a blood buffer.
b. helps maintain blood's osmotic pressure.
c. distributes body heat.
d. transports certain molecules.

검증된 단계별 안내

Understand the role of albumin in the blood: Albumin is a protein produced by the liver and is the most abundant plasma protein in the blood. It has multiple physiological functions.

Analyze the first option: 'is a blood buffer.' Albumin contributes to maintaining the pH of blood by acting as a buffer, helping to stabilize pH changes.

Evaluate the second option: 'helps maintain blood's osmotic pressure.' Albumin plays a critical role in maintaining oncotic pressure (a component of osmotic pressure) by drawing water into the bloodstream, preventing fluid from leaking into tissues.

Consider the third option: 'distributes body heat.' Albumin, as part of the blood plasma, helps in the distribution of heat throughout the body due to its role in blood circulation.

Examine the fourth option: 'transports certain molecules.' Albumin binds to and transports various substances, such as hormones, fatty acids, and drugs, through the bloodstream.

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주요 개념

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Albumin Function

Albumin is a protein synthesized by the liver that plays a crucial role in maintaining osmotic pressure in the blood. This function is vital for regulating the distribution of fluids between blood vessels and tissues, preventing edema and ensuring proper hydration.

Blood Buffering

As a blood buffer, albumin helps to stabilize pH levels in the bloodstream by binding to hydrogen ions. This buffering capacity is essential for maintaining the acid-base balance in the body, which is critical for normal cellular functions and metabolic processes.

Molecule Transport

Albumin serves as a transport protein for various molecules, including hormones, fatty acids, and drugs. By binding to these substances, albumin facilitates their movement through the bloodstream, ensuring that they reach their target tissues effectively.

Albumin a. is a blood buffer. b. helps maintain blood's osmotic pressure. c. distributes body heat.d. transports certain molecules.