2006-09-20 15:57:18 · 4 answers · asked by ? 3 in Science & Mathematics ➔ Biology
In both plants and animals, the phospholipid bilayer of the cell membrane is mainly stablised and fluidity maintained by cholesterol attached to the fatty acid chains or embedded in the hydrophobic layer of the membrane.
The cholesterol prevents the phospholipid molecules from packing too close together in low temperatures and prevents them from becoming too fluid at high temperatures.
Hope this helped! :)
2006-09-20 16:52:05 · answer #1 · answered by musicalif3 2 · 1⤊ 0⤋
Sugar - lowers the freezing temperature of liquids in plant membranes. Which is why Maple Syrup is collected in the winter time - more sugar in the sap.
2006-09-20 23:06:19 · answer #2 · answered by gshprd918 4 · 0⤊ 0⤋
antifreeeze like
substances proteins
2006-09-20 23:00:29 · answer #3 · answered by above topsecret 1 · 0⤊ 0⤋
sugar and oil
2006-09-20 23:10:00 · answer #4 · answered by Henry W 7 · 0⤊ 0⤋