The cells that produce hair contain a lot of while the cells that produce the oils that coat the hair contain a lot of smooth endoplasmic reticulum . . lysosomes smooth endoplasmic reticulum . . rough endoplasmic reticulum microbodies . . lysosomes rough endoplasmic reticulum . . smooth endoplasmic reticulum nuclei . . chromatin

1. rough endoplasmic reticulum

2. smooth endoplasmic reticulum

Explanation:

Hair, which is made up of cells called KERATINOCYTES, is primarily made up of a protein called KERATIN. Cells in every part of the body contains organnelles that performs certain functions. Based on the asked question, we'll be looking at two of these organnelles; Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum.

Rough Endoplasmic Reticulum is a cellular organnelle that is directly involved in the production of proteins in a cell due to the attachment of ribosomes (site of protein synthesis) to it. Hence, RER is responsible for the production of matured proteins in a cell. The Smooth Endoplasmic Reticulum, on the other hand, is involved in the synthesis of lipids (fats and oils) in a cell.

Since the hair is basically made up of keratin protein, it is just sensible that the cells responsible for the production of hair (keratinocytes) will be rich in the organnelles that produces proteins (Rough Endoplasmic Reticulum) while the cells that produces the oily substances that coat the hair will be rich in the organnelle that synthesizes oil (Smooth Endoplasmic Reticulum).

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.