HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What pigment is responsible for giving skin color and protecting skin from UV rays?
|
|
Collagen
|
|
|
Keratin
|
|
|
Sebum
|
|
|
Melanin
|
Explanation:
Detailed explanation-1: -Melanin synthesized within melanosomes is transported via dendrites to adjacent keratinocytes, and accumulate within keratinocytes and melanocytes in the perinuclear area as supranuclear “caps” that are thought to shield DNA from UV rays (58).
Detailed explanation-2: -Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin.
Detailed explanation-3: -Melanin is different. Instead of becoming very reactive when hit by UV light, melanin releases the extra energy as heat; it reacts less than 1 out of every 1000 times it becomes excited. This allows melanin to protect more sensitive molecules, like DNA, from UV exposure.
There is 1 question to complete.