0
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.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoOne of melanin's main contributions is filtering or breaking down toxins. It does not contribute to weight gain. It can absorb ultraviolet light if it is applied with certain cosmetic creams. It may also cause sweating or jiterring. Melanin is found in the central nervous system of your body. It repairs wounds and forms new cells. Certain melanin can be used to treat cancer.
Wiki User
∙ 11y agoPigments that contribute to skin color are called carotene, a yellowish hemoglobin, in blood vessels (pink-red), and melanin (black, brown, red). Darker skins are dominated by melanin, which is produced from the amino acid tyrosine, by pigment cells (melanocytes) in the skin. Melanocytes are characterized by long, fixed extensions of the outer cell membrane. In humans, other mammals, and birds, melanin is dispersed permantely throughout each melanocyte, including the extensions, and is also, transported to nearby skin cells. In other words, if you increase the amount of melanin in the skin you become darker and vice versa
Wiki User
∙ 10y ago"Plaques" of melonin are deposited above the nucleus of epidermic cells and absorb radiation such as UV light, preventing it from reaching the nucleus where the chromossomes are.
Add your answer:
Earn +20 pts
How does resident normal flora protect the body against pathogens?
how does residental normal flora protect the body against pathogens
What helps protect the body by removing bacteria and foreign bodies?
The immune system helps protect the body by removing bacteria and foreign bodies.
The purpose of the body's immune system is to protect the body from?
Immune system protects the body from any type of foreign antigen or pathogen which can cause disease. It also protect from particles to cause disease in human body.
What is the job of the cell body?
To protect the nucleus
Substances in the blood that help the body protect itself?
The white blood cells do most of the work of helping the body protect itself. White blood cells attack any infections that infiltrate the body and destroy them, while also training the body to fight these infections in the future.
How do antigens protect the body from diseases?
Antigens do not protect the body from disease. Antibodies protect the body from many diseases.
What is the roman armor made out of?
Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.Roman body armor, as all other body armor, was used to protect the body.
What pigment causes muscle to be brown?
That would most likely be Melonin (if I am incorrect feel free to improve!)
How does the body protect itself when such an accident happen?
the body protect itself when such an accident happen by it's recovering materials that can protect it from any accident .
Why did egyptians protect a person's body ofter death?
They developed a process called embalming to protect the body.
What do T cells protect the body against?
The T cells help protect the body against viruses.
What body structure protect body from harm?
The skin
What body covering turtle has to protect its body?
A Shell
What body system cover and protect the body?
muscular
Glutathione cause glowing skin?
Glutathione is the most powerful antioxidant which detoxifies & makes the production of melonin less hence making it brighter.
Which part of body protect your brain?
Skull bones protect your brain.
How does resident normal flora protect the body against pathogens?
how does residental normal flora protect the body against pathogens
