Cell surface markers are
Correct answer: E. both b and d
- A. Lipoproteins
- B. Glycolipids
- C. Sphingolipids
- D. Glycoproteins
- E. both b and d
Explanation
The correct answer is both b and d because both glycolipids and glycoproteins are classified as cell surface markers. Glycolipids are lipids with carbohydrate groups attached, found on the outer surface of cell membranes, playing critical roles in cell recognition and signaling. Glycoproteins, on the other hand, are proteins that have carbohydrates covalently bonded to them, and they also function in recognition and signaling processes at the cell surface. In contrast, lipoproteins primarily function in lipid transport in the bloodstream and are not cell surface markers. Sphingolipids, while important for membrane structure and signaling, are not specifically known as markers for cell recognition.
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About Conjugated Molecules
Conjugated molecules contain a non-protein component attached to a protein portion, giving the molecule properties that a simple protein lacks. The content includes glycoproteins, lipoproteins, phosphoproteins, nucleoproteins, chromoproteins and metalloproteins, with attention to their prosthetic groups and roles in transport, protection, catalysis and cellular structure.
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