0
There is a pigment that our skin produces, called 'melanin' (you've probably heard of it) which has this special role. This protein is created by cells called melanocytes when DNA damage is detected. These melanocytes have a few protruding arms which attach to basal cells, which are particularly susceptible to the harmful effects of UV radiation.
So when our skin is exposed to UV light, such as in sunlight, the DNA in these basal cells may be damaged, causing them to send distress signals to the melanocytes through its attachments, which then results in the melanocyte increasing its production of melanin which it releases into the skin to try to shield these cells from further damage.
Since melanin in humans is a yellow-brown colour, this increased production results in a diffuse pigmentation we know as a tan, or may occur in more localised defined areas such as in freckles and moles.
Remember: A 'holiday tan' is a sign of excess rapid sun exposure, and a symptom of DNA damage. It is the direct result of the skin working incredibly hard to protect the body against harmful UV radiation, the effects of which may damage DNA to the extent that dangerous cancers such as melanoma may occur. Be careful in the sun!
What else can I help you with?
What layer protects us from what kind of radiation?
The ozone layer protects us from the radiation of sun. This radiation is called ultraviolet radiation and is very harmful.
How the stratospheric ozone layer protects the biosphere?
The ozone in the stratosphere absorbs ultraviolet radiation
What do you called it protects the earth from harmful ultraviolet RADIATION?
The protective layer in the Earth's atmosphere that shields us from harmful ultraviolet radiation is called the ozone layer. It is located in the stratosphere and absorbs most of the sun's ultraviolet radiation, protecting life on Earth from its harmful effects.
Which layer of the earth atmosphere protects the earth from dangerous ultraviolet?
The ozone layer, situated in the stratosphere of the Earth's atmosphere, is responsible for absorbing and blocking most of the dangerous ultraviolet (UV) radiation from the sun. This layer helps in safeguarding life on Earth by preventing excessive UV radiation from reaching the surface.
What are three oxygen atoms combined that protects us from ultraviolet radiation?
The molecule formed is ozone. It is present as the ozone layer.
What protects the skin from ultraviolet radiation?
Melanin is a substance produced by the skin that protects the skin from ultraviolet radiation. It also gives skin its color.
What protects little thing from too much ultraviolet radiation?
Their size. The smaller something is, the less ultraviolet radiation it can receive.
What protects the earth from high energy light, such as ultraviolet radiation from the sun?
The ozone layer in the Earth's atmosphere protects it from high energy light, like ultraviolet radiation from the sun.
What layer protects us from what kind of radiation?
The ozone layer protects us from the radiation of sun. This radiation is called ultraviolet radiation and is very harmful.
What does the atmosphere do for the inner planets?
It protects the inner planets from ultraviolet radiation
What part the atmosphere protects the earth from ultraviolet radiation?
Simple, the Ozone Layer.
How the stratospheric ozone layer protects the biosphere?
The ozone in the stratosphere absorbs ultraviolet radiation
What do you called it protects the earth from harmful ultraviolet RADIATION?
The protective layer in the Earth's atmosphere that shields us from harmful ultraviolet radiation is called the ozone layer. It is located in the stratosphere and absorbs most of the sun's ultraviolet radiation, protecting life on Earth from its harmful effects.
Does melanin help in calcium absorption?
No, melanin protects the skin from ultraviolet radiation. Vitamin D is synthesized in the skin and help with calcium absorption.
What protects living things from too musch ultraviolet radiation?
Ozone protects living things from UV rays. It is present as ozone layer.
Which layer of the earth atmosphere protects the earth from dangerous ultraviolet?
The ozone layer, situated in the stratosphere of the Earth's atmosphere, is responsible for absorbing and blocking most of the dangerous ultraviolet (UV) radiation from the sun. This layer helps in safeguarding life on Earth by preventing excessive UV radiation from reaching the surface.
What protects humans from ultraviolet radiation besides the ozone layer?
Only ozone layer protects us from the UV rays. No other substance or gas can do that.
