Final answer:
From the provided list, sphingomyelin (3) and phosphatidylserine (6) are the lipids that contain a phosphorous atom. These compounds are classified as phospholipids due to the presence of this atom.
Step-by-step explanation:
The lipids containing a phosphorous atom from the given list are:
sphingomyelin
phosphatidyl serine
Both sphingomyelin and phosphatidyl serine are phospholipids that contain a phosphorous atom in their structure. Phospholipids are a type of lipid that consists of a glycerol molecule, two fatty acid chains, and a phosphate group. These lipids are an essential component of cell membranes and play a crucial role in cell structure and function.
The student was asked to select lipids containing a phosphorous atom from a given list. The lipids containing a phosphorous atom can be identified as those that are phospholipids or sphingophospholipids. From the provided list, sphingomyelin and phosphatidylserine contain a phosphorous atom.
Sphingomyelin is a sphingophospholipid that includes a phosphate group in its structure. Likewise, phosphatidylserine is a glycerophospholipid with a phosphate group attached to serine. Cholesterol and triacylglycerol, though lipids, lack a phosphorous atom and are not considered phospholipids.
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