Which of the following molecules would you add to skin cells to reduce the chance of skin cancer? Select one: a. Oxygen b. Carotene c. Vitamin D3 d. Carbon dioxide e. Melanin
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- Which of the following statements about melanocytes and keratinocytes is true? a. Melanocytes are in the dermis and keratinocytes are in the epidermis b. Melanocytes produce pigment but keratinocytes do not. c. Both cell types produce waterproofing material. d. Both cell types divide and die as they move away from their blood supply.1. A) A major function of the skin is protection from ______. A. abrasion B. ultraviolet light C. entry of a microorganism D. dehydration E. All of the above B) What is one important function of melanin? A. Resets the diurnal biological clock B. Increases the amount of blood vessels C. Causes the skin to become cooler D. Absorbs harmful radiation E. Strengthens the skin or eyes C) Most of the cells of the epidermis are ________________. A. fibroblasts B. keratinocytes C. macrophages D. Langerhans cells D) The epidermis is nourished by diffusion from capillaries in the ___________. A. papillary layer of the dermis B. hypodermis C. epidermis D. reticular layer of the dermis E) Cell division occurs in which layer of the epidermis? A. Stratum lucidum B. Stratum corneum C. Stratum basale D. Stratum granulosum F) Which of the following is NOT…Which statement is true about melanin and melanocytes?a. Melanin is produced by cells that are located in thestratum spinosum.b. Melanin is a pigment that accumulates inside keratinocytes.c. Darker-skinned individuals have more melanocytes thanlighter-skinned individuals.d. Albinism is caused by a lack of melanocytes inthe body
- Regarding the short film, "Biology of Skin Color" (in 250 to 300 words) - What is the relationship between melanin, geography, folate, and vitamin D? Provide a personal reflection on something that surprised you or something new you learned on this topic.Does skin have DNA?Which option best describes the functions of skin? * A) Mineral storage, blood cell formation, protection, support B) Waste removal, movement, regulation of body temperature, protection C) Formation of vitamin D, protection, movement, mineral storage D) Protection, waste removal, formation of vitamin D, sensory response
- Using the rule of nines, estimate the extent of damage for an individual whose body, clad only in a short nightgown, was burned when the nightgown caught fire as she was escaping from a burning room. What special problems would result from the loss of 50% of a person’s functional skin surface? How might this person’s environment be modified to partially compensate for such a loss?In an accident a patients arm has been cut so deep that her skin,muscles and bone are damaged. what portions of the skin needs to heal and how will it accomplish this?In some diseases, an infection causes a high fever, resulting in a crisisstate. Once body temperature begins to return to normal, the person ison the way to recovery. If you were looking for symptoms in a personwho had just passed through the crisis state, would you look for dry,pale skin or flushed, wet skin? Explain.
- Why does the use of tanning beds also increase the incidence of skin cancer?Is the skin just a covering for the body, as people believed in early centuries? Explain the important job of the skin and its organs.The skin helps maintain optimum calcium and phosphate levels in thebody by participating in the production ofa. vitamin A. c. vitamin D. e. keratin.b. vitamin B. d. melanin.
