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What is the skintone of Inuit people?
The skin tone of Inuit people is bronze. Even though the Inuit people are not exposed to excessive sunlight, they are exposed to enough UV rays for melanin to be activated.
What time of the year is the southern hemisphere exposed to vertical rays of the sun?
When the northern hemisphere is in winter, the southern hemisphere is in summer.
Advantages of ozone?
ozone is the layer of the atmosphere where the ultraviolet rays of the sun are blocked because ultra violet rays of the sun when the skin too much exposed to it cause skin cancer.See also "How does ozone affect human health?" in the "Related questions" section below.
Why is LA so smoggy?
smog traps in heat from the sun rays. it gets worse during the summer because LA is more exposed to the sun, making the temperatures rise and trap moisture making LA hot and humid
How are the sun's rays like mathematical rays?
Rays are a line that starts but, does not end. Sun rays start but, do not end for a long time.
What is the stimulus for increased melanin production?
Increased melanin production is stimulated by exposure to ultraviolet (UV) radiation from the sun. This exposure leads to the activation of melanocytes in the skin, which produce more melanin to protect the skin from further damage. Other factors such as hormonal changes, inflammation, and certain medications can also stimulate melanin production.
Does a dog's fur get darker when exposed to the sun?
Yes, a dog's fur can get darker when exposed to the sun due to the sun's UV rays causing the production of more melanin in the fur.
Explain why we become tanned after sitting in the sun?
We become tanned after sitting in the sun due to the production of melanin, a pigment in the skin. When exposed to ultraviolet (UV) rays, the skin's melanocytes increase melanin production as a protective response to prevent DNA damage from the UV radiation. This increased melanin causes the skin to darken, resulting in a tan. However, excessive sun exposure can lead to skin damage and increase the risk of skin cancer.
How does sun exposure affect melanin?
The variations of skin color are a result of the amount of melanin that is produced and how it is distributed. this is obvious when you are exposed to the ultraviolet rays of the sun. In order to protect your skin, melanocytes produce more melanin and, voila!, you've got a tan.
What is the function melanin?
Melanin gives color to the skin, hair, and iris of the eyes. Levels of melanin depend on race and amount of sunlight exposure. Sun exposure increases melanin production - to protect the skin against harmful ultraviolet rays. In addition, hormonal changes can affect melanin production.
Is it possible to get a tan from an electric fly killer?
No, since a tan is the result of melanin in the skin exposed to ultraviolet rays.
Where Natural selection favored alleles for increased melanin production in human living?
Natural selection favored alleles for increased melanin production in humans primarily in regions with high UV radiation, such as near the equator. Increased melanin provides protection against harmful UV rays, reducing the risk of skin cancer and preventing folate degradation, which is crucial for reproductive health. Conversely, in areas with lower UV exposure, lighter skin evolved to facilitate vitamin D synthesis. Thus, melanin levels in human populations reflect adaptations to varying environmental conditions.
How do vitamins contribute to the production of melanin in the skin?
Vitamins, such as vitamin C and vitamin E, play a role in the production of melanin in the skin. These vitamins help protect the skin from damage caused by UV rays, which can stimulate melanin production. Additionally, vitamin C is essential for the enzyme tyrosinase, which is involved in the production of melanin. Overall, vitamins support the process of melanin production in the skin, helping to maintain skin health and protect against sun damage.
Explain the role of ACTH and melanin when the skin is exposed to ultraviolet light?
"What is the role of ACTH and melanin when the skin is exposed to ultraviolet light?"
What is the skintone of Inuit people?
The skin tone of Inuit people is bronze. Even though the Inuit people are not exposed to excessive sunlight, they are exposed to enough UV rays for melanin to be activated.
What is tanning effect?
Tanning is a result of exposure to sun rays. When skin gets exposure to UV rays melanin production increases. There are number of methods to remove tan, but it can take long.
Why does spending too much time in sun tan your skin?
A suntan is the result of your body trying to minimize the impact of excessive exposure to UVA and UVB rays. Believe it or not, black people and white people have the same number of melanocytes (skin pigment generating cells). When exposed to UV light, the cells do not increase production, but another type of cell (the melanosome) reduces the rate at which it destroys melanin. By increasing the deposition of melanin (or, more acurately, decrease the rate of melanin metabolization), the body can "absorb" a certain amount of UV light. A "tan" is simply your bodies way of saying it's near capacity for UV light. A sunburn will surely follow, which is nothing more (or less) than a burn caused by radioactive material.
