Yes
Melanin shields the nucleus from damage by ultraviolet radiation. It keeps this radiation from damaging the skin and DNA. It also gives color to your skin, hair, and irises. Melanin is a pigment which gives characteristic color to skin. Its main role is to absorb harmful UV radiations and protect our skin cells from damage. It determines the color of your skin. Melanin colors hair, skin, eyes, feathers, etc.
Ultraviolet rays are potentially harmful to us due to their intensity. This is what is known as the amplitude of the rays from the sun.
yes they can be very harmful there known to cause skin cancer
Exposure to ultraviolet (UV) radiation from the sun or tanning beds stimulates the production of melanin in the skin. Melanin is the pigment that gives skin its color and helps protect against UV damage. Increased melanin production results in a darker skin tone, known as tanning.
I do not have the ability to display images. Ozone (O3) is a molecule composed of three oxygen atoms and is known for its role in the stratosphere, where it helps to protect the Earth from the sun's harmful ultraviolet radiation.
Melanin is a natural pigment produced by cells called melanocytes. It is composed of complex polymers derived from the amino acid tyrosine. These polymers absorb and scatter ultraviolet (UV) radiation, providing protection against skin damage.
Melanin The amount of melanin you have in your skin is determined by your genes- it is a genetic trait you were born with inherited from your mom and dad. The sun makes skin get darker. In addition- The sun's UV rays are absorbed by melanin in varying concentrations resulting in different skin colors/freckles/tans etc.... The lighter a person's natural skin color, the less melanin the skin has to absorb UV and protect itself. The darker a person's natural skin color, the more melanin the skin has to protect itself.
The region 10 to 25 miles above Earth's surface is known as the stratosphere. This layer of the atmosphere contains the ozone layer, which helps to absorb and protect us from harmful ultraviolet radiation from the sun.
Chlorofluorocarbons (CFCs) are harmful to the ozone gas in the atmosphere. They are known to deplete the ozone layer, which helps protect the Earth from harmful ultraviolet radiation. This depletion can lead to increased levels of UV radiation reaching the Earth's surface, causing health and environmental problems.
Melanocytes are found in the epidermis, mixed amongst the rest of your skin cells, known as keratinocytes. When a melanocyte gets exposed to UV rays (ie the sun) it secretes melanin, and puts it into little packages (vesicles) called melanosomes. It delivers the melanosomes to the surrounding keratinocytes, which break them open with lysosomes to release the melanin into their cytoplasm. The melanin then goes to surround the nucleus of the cells, and protect its DNA from any more UV light. If you look at cells with lots of melanin vs. cells with little melanin under a microscope, you will notice that the cells with lots of melanin have very dark nuclei.
No. They can not see in ultraviolet light. They are known to glow when exposed to ultraviolet light, though.
The medical word for a decreased level of melanin in the iris is albinism.