Phosphate group

Saturated fatty acid

Glycerol backbone

Ketone group

Unsaturated fatty acid

The two fatty acid chains present in glycolipids/phospholipids are too bulky to form micelles

Hydrophobic interactions do not drive the fatty acid hydrocarbons inwards in phospholipids and glycolipids as they do for free fatty acids

Phospholipids and glycolipids are far less unsaturated than free fatty acids

Phospholipids and glycolipids do not have hydrocarbon tails, and so there is nothing to drive them towards micelle formation

None of these

Amino group

Carbon chain

Glycerol

Phosphate group

Ester group

Their hydrophilic tails are exposed to the interior of membranes, and their hydrophobic heads to the exterior.

Typically, at least one tail is saturated and another tail is unsaturated.

When, in water, they form a sphere, it is called a micelle.

The fluidity of membranes composed of phospholipids is affected by the length and degree of saturation of fatty acid tails.

If a phospholipid bilayer slightly breaks apart, the lipids rearrange on their own to refill the layer.

micelle

bilayer

liposome

vesicle