WebWhich of the following best described the make-up of a phospholipid? answer choices The head is polar/hydrophilic; the tail is non-polar/hydrophobic The head is non-polar/hydrophilic; the tail is polar/hydrophobic The head is non-polar/hydrophilic ; the tail is polar/hydrophilic The head is polar/hydrophobic; the tail is non-polar/hydrophilic WebPhospholipids are molecules that form the cell membrane. They consist of a polar phosphate head group and two nonpolar fatty acid tails joined by a glycerol backbone. The phosphate group can link with different molecules, such as serine or choline, to generate diverse kinds of phospholipids.
Phospholipid bilayers Knowt
WebMar 5, 2024 · The phospholipid bilayer consists of two layers of phospholipids, with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior. The hydrophilic (polar) head group and hydrophobic tails (fatty acid chains) are depicted in the single phospholipid molecule. The phospholipids are amphiphilic. The hydrophilic end usually contains a negatively charged phosphate group, and the hydrophobic end usually consists of two "tails" that are long fatty acid residues. In aqueous solutions, phospholipids are driven by hydrophobic interactions, which result in the fatty acid tails aggregating to minimize interactions with th… chilly willy snowman
Phospholipid: Definition, Structure, Function Biology …
WebApr 7, 2024 · A phospholipid is an amphipathic molecule, meaning it has both hydrophobic and hydrophilic components. A single phospholipid molecule is made up of a phosphate group on one end, referred to as the "head," and two side-by-side chains of fatty acids, referred to as the "tails." WebThere are two important parts of a phospholipid: the head and the two tails. The head is a phosphate molecule that is attracted to water (hydrophilic). The two tails are made up of fatty acids (chains of carbon atoms) that aren’t compatible with, or repel, water (hydrophobic). Why phospholipid tail is hydrophobic? WebNov 8, 2024 · Phosphatidic acid is a dynamic headgroup that is uncharged below pH 4, but has a -1 charge at physiological (human) pH and a -2 charge above pH 14. Similarly, phosphatidylserine has a -1 charge and phosphatidylcholine is zwitterionic (Figure 1.2. 7 ). Figure 1.2. 7: Headgroups found in cell membranes with various charges. grade 12 past papers mathematics dbe