Question

What makes up extracellular fluid and where is it found?

a) Water and electrolytes; found inside cells
b) Proteins and carbohydrates; found in the bloodstream
c) Water and ions; found outside cells
d) Nucleic acids and lipids; found in connective tissue

Answer 1

Extracellular fluid is composed of water and ions, and it is found outside of cells, encompassing the interstitial fluid and blood plasma. It facilitates the transport of nutrients, wastes, and gases, and is crucial for maintaining various body functions and homeostasis.

Step-by-step explanation:

The correct answer to the question of what makes up extracellular fluid and where it is found is: c) Water and ions; found outside cells. This fluid is essential for various physiological processes, including the transport of nutrients, ions, and waste materials between cells and the bloodstream. The extracellular fluid (ECF) includes the interstitial fluid, which surrounds all cells except blood cells, and blood plasma, which circulates within the blood vessels. The ECF is an aqueous solution containing various substances such as electrolytes (like sodium and potassium ions), glucose, oxygen, carbon dioxide, and other dissolved solutes. These components are crucial in maintaining homeostasis, including the pH balance, electrolyte balance, and facilitating various cell functions.