Plasma is the fluid medium in blood, transporting food, carbon dioxide, nitrogenous wastes, salts, and other substances in dissolved form.
What is the role of plasma in blood, and what substances does it transport in dissolved form?
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Plasma is the fluid component of blood, constituting about 55% of its volume. It serves as a medium for the transportation of various substances in dissolved form. Plasma carries nutrients such as glucose, amino acids, and fatty acids, facilitating their distribution to tissues. Additionally, waste products like urea and creatinine are transported for excretion. Electrolytes, hormones, and gases like carbon dioxide also travel in plasma. The dissolved substances in plasma contribute to the regulation of osmotic balance, pH, and other physiological processes. This fluid connective tissue ensures the efficient exchange of substances between different parts of the body.