Glucose moves from the plasma into a skeletal muscle cell, where it is used for energy. Through which fluid compartment does glu
cose move between the plasma and the skeletal muscle cell? (A) Intracellular fluid
(B) Interstitial fluid
(C) Extracellular fluid inside of blood vessels
(D) Cytosol
The interstitial fluid and blood plasma together make the extracellular fluid. The extracellular fluids are present outside the cells. The extracellular fluid that is present in the narrow spaces between cells of tissues is known as interstitial fluid. When a substance moves from blood plasma into the cells of a tissue, it crosses the interstitial fluid present between its cells. Therefore, when a skeletal muscle cell picks glucose molecules from blood plasma, it moves from plasma to the interstitial fluid to enter the cell.
