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Does Melanin help to protect skin cell DNA from the damaging effects of ultraviolet radiation?
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoYes it helps.
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Ozone molecules protect Earth from the harmful effects of the sun by -?
absorbing ultraviolet radiation
Ozone molecules protect the earth from harmful effects of the sun by?
absorbing ultraviolet radiation
What is the effect of UV rays on the human body?
Ultraviolet radiation is harmful to human eyes and can cause blindness. Also the ultraviolet(UV) wavelenghts are smaller than light wavelenghts, therefore UV carry more enegry than light rays. Too much UV radiation causes sunburn and can cause skin cancer.
Discuss the effects of ionizing radiation on cellular constituents?
what are the effects of ionizing radiation on cellular constituents
What protects you for from ultraviolet radiation?
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 layer of gas shields organisms from the damaging effects of ultraviolet radiation?
The ozone layer shields us from ultraviolet radiation.
Why do eyes need color?
Originally, everyone had brown eyes, which are caused by melanin in the eye. The melanin protects the eyes from the damaging effects of ultraviolet light.
Which part of the eye gives color to your eyes?
Originally, everyone had brown eyes, which are caused by melanin. The melanin helped protect the eyes from the damaging effects of ultraviolet light.
What is eye color?
Originally, everyone had brown eyes. The brown was caused by melanin in the eye. Melanin in the eye protects the eye from the damaging effects of ultraviolet light.
What are the effects of blue eyes?
They are more susceptible to the damaging effects of ultraviolet rays than brown eyes.
Ozone molecules protect Earth from the harmful effects of the sun by?
absorbing ultraviolet radiation
Ozone molecules protect Earth from the harmful effects of the sun by -?
absorbing ultraviolet radiation
Ozone molecules protect the earth from harmful effects of the sun by?
absorbing ultraviolet radiation
What has the author Steven D Heywood written?
Steven D. Heywood has written: 'Effects of ultraviolet-B radiation on the biochemical composition of a marine diatom, Phaeodactylum tricornutum' -- subject(s): Marine phytoplankton, Ultraviolet radiation, Effect of radiation on
What causes the damaging effects on radiation on the body?
simply put, when radiation is introduced to your body, that "excess energy" is put into your biological tissue and it acts unstable.
Which gas in the atmosphere protect life from the sun's harmful?
The gas in the atmosphere that protects life from the sun's harmful ultraviolet (UV) radiation is ozone (O3). The ozone layer is located in the stratosphere and acts as a shield, absorbing most of the UV radiation and preventing it from reaching the Earth's surface. Without ozone, excessive UV radiation would have damaging effects on living organisms.
What are the effects of the ultraviolet radiation?
over exposure can lead to sunburn, inflammation, and tanning. Over time it may lead to blindness or cancer.
