are the major type of glycolipids; contain ceramide and one or more sugars e.g glucose or galactose
Glycosphingolipids
Sphingosine
Carbohydrate unit
Long chain fatty acid unit
Cerobroside(Glycolipid)
is a major glycosphingolipid of the brain and other nervous tissue.
Galactosylceramide
– It contains a number of characteristic C24 fatty acids, eg,
cerebronic acid
resembles galactosylceramide, but the head group is glucose rather than galactose
Glucosylceramide
It is the predominant simple glycosphingolipid of extraneural tissues, also occurring in the brain in small amounts.
Glucosylceramide
are complex glycosphingolipids derived from glucosylceramide that contain in addition one or more molecules of a sialic acid.
Gangliosides
is the principal sialic acid found in human tissues
Neuraminic acid (NeuAc)
These are glycolipids which have no phosphate group but neutral head group and contain one or two sugar groups usually glucose or galactose
Cerebrosides
All steroids have a what nucleus
phenanthrene nucleus (rings A, B, and C)
All steroids have a phenanthrene nucleus (rings A, B, and C) attached to it and
cyclopentane ring
is the most famous steroid
Cholesterol
a C27 steroid molecule
Cholesterol
Cholesterol contains side chain at postion
17
It is a sterol (steroid alcohol) as it contains OH group at
position 3.
Cholesterol Widely distributed in all cells but more in
nervous tissue
Cholesterol Major constituent of
plasma membrane and plasma lipoproteins