Question

multiple choice question
the myelin in the myelin sheath of a neuron is a substance that consists of
o carbohydrates and lipids
o proteins and lipids
o proteins and carbohydrates
o fats and phospholipids

Explanation:

Myelin sheath is formed by Schwann cells (in peripheral nervous system) or oligodendrocytes (in central nervous system). Chemically, myelin consists of about 80% lipids (including phospholipids, cholesterol) and 20% proteins. Proteins like myelin - basic protein and proteolipid protein are present in myelin. Lipids are a major component. Carbohydrates are not a significant component of myelin. Fats is a broad term and not the accurate description as myelin has specific lipid types like phospholipids along with proteins.

Answer:

proteins and lipids