
Which epidermal cell type is most numerous? (a) keratinocyte, (b) melanocyte, (c) dendritic cell, (d) tactile cell.

To determine:
The name of the epidermal cell which is found numerously in the body is:
keratinocytes
melanocyte
dendritic cell
tactile cell
Answer to Problem 1MC
Solution:
(a) Keratinocytes: The epidermis is composed of 90% of keratinocytes.
Explanation of Solution
Explanation for the correct answer:
The epidermis is the outer layer of the body. The keratinocytes are the cells that make up the maximum of the epidermis. These cells reduce water loss from the body and also protect the body from external stress and microbes. Thus, option (a) is considered as correct option.
Explanation for the incorrect answer:
Option (b) is given as melanocyte. Melanocytes are the melanin forming cells. Melanin is a pigment responsible for the skin color. These cells consists approximately 5% to 10% of the cells present in basal layer of epidermis. Thus option (b) is an incorrect answer.
Option (c) is given as dendritic cell. Dendritic cells are antigen- presenting cells found in all layers of epidermis and among all stratum spinosum is the most prominent site. These cells make 2% - 4% of the total epidermial cells. Thus option (c) is an incorrect answer.
Option (d) is given as tactile cells. These are the sensory receptor cells present in epidermis and help to perceive the environment through tactile sense. These cells consists 0.5% to 5% of the total epidermal cells. Thus option (d) is an incorrect answer.
Hence, option (b), (c) and (d) are considered as incorrect options.
Thus it is concluded that keratinocytes are the cells that makes approximately 90% of the total epidermal population, and considered as most numerously found cell in the epidermis.
Want to see more full solutions like this?
Chapter 5 Solutions
Anatomy & Physiology (6th Edition)
- In one paragraph show how atoms and they're structure are related to the structure of dna and proteins. Talk about what atoms are. what they're made of, why chemical bonding is important to DNA?arrow_forwardWhat are the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins).arrow_forwardThe Sentinel Cell: Nature’s Answer to Cancer?arrow_forward
- Molecular Biology Question You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?arrow_forwardMolecular Biology Explain/discuss how “slow stop” and “quick/fast stop” mutants wereused to identify different protein involved in DNA replication in E. coli.arrow_forwardMolecular Biology Question A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?arrow_forward
- Molecular Biology LIST three characteristics of origins of replicationarrow_forwardMolecular Biology Question Please help. Thank you For E coli DNA polymerase III, give the structure and function of the b-clamp sub-complex. Describe how the structure of this sub-complex is important for it’s function.arrow_forwardMolecular Biology LIST three characteristics of DNA Polymerasesarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningAnatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning


