Free and unesterified fatty acids bind to one of a number of chaperone proteins in order to be transported in the aqueous environment of the cytosol.Which of the following facilitates this intracellular transport?
A)fatty acid-binding proteins
B)aquaporins
C)flippases
D)fatty acid synthase

Question

Quizplus · Accepted Answer

Fatty acid-binding proteins (FABPs) facilitate the intracellular transport of free and unesterified fatty acids by binding to them and carrying them through the cytosol to their final destination, such as the mitochondria or endoplasmic reticulum. Aquaporins are membrane channels that facilitate the transport of water molecules, not fatty acids. Flippases are enzymes that catalyze the flipping of phospholipids from the outer to the inner leaflet of the cell membrane. Fatty acid synthase is an enzyme that synthesizes fatty acids, not transports them.

Free and Unesterified Fatty Acids Bind to One of a Number