Colorado Esthetician Written Practice Exam

Which type of cell creates lipids and proteins in the epidermis?

1. Keratinocytes

2. Langerhans

3. Stratum Basal cells

4. Stratum Spinosum cells

The correct answer is: Stratum Spinosum cells

Stratum Spinosum cells are located in the middle layer of the epidermis and are responsible for creating lipids and proteins. Keratinocytes, Langerhans, and Stratum Basal cells do not produce lipids and proteins. Keratinocytes produce the protein keratin, which is important for skin structure and waterproofing. Langerhans cells are specialized immune cells that fight against foreign substances in the skin. Stratum Basal cells are responsible for creating new skin cells and are not involved in producing lipids and proteins. Therefore, D is the most accurate answer.