Question

What two types of macromolecules are the main components of myelin? A. carbohydrates and lipids B. proteins and nucleic acids C. phospholipids and proteins D. carbohydrates and nucleic acids E. water and proteins

Answer 1

Answer: Option A) carbohydrates and lipids

Explanation:

Myelin is present in the axons of nerve cells. It is composed of a class of lipids called sphingolipids with choline, galactose, glucose present in the chemical composition alongside N-acylsphingosine.

Thus, Myelin is composed of lipids and carbohydrates

Answer 2

Answer: Option C.

Explanation:

Myelin are insulating layer or sheath that surrounds axonal part of neurons of the brain and spinal cord . Myelin surrond nerve cells or neurons.

It contain protein and fatty substances. It is Rich in lipids which help in propagation of nerve impulses. The insulation improved the efficiency of signal transduction along the nerves cell.