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heat. uv rays and ir rays
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Why are some persons skin darker than others?
Some peoples skin are darker due to the production of melanin which is made by melanocytes. When a person is in direct contact with the sun it triggers the production of melanin to be made.
Why is the amplitude of the compound action potential recorded from the frog sciatic nerve increased when the voltage of the stimulus was increased above the threshold value?
when the voltage of the stimulus is increased above threshold, it can instantly trigger the action potential into a depolarizing state which will rapidly shoot up above the threshold value.
What is dark pigment of the body called?
melanin is black pigment found in the epidermisMelaninMelanin
What does the folding of the mitochondrial inner membrane provide?
The folding of the cristae provides an increased surface area, allowing the rate of the production of ATP to be increased.
Which of these is an inclusion not an organelle melanin lysosome microtubule cilia?
malanin
Where does a suntan actually results from?
increased melanin production
When skin is exposed to UV rays is melanin production increased?
Yes!!! The melanin in keratinocytes protects your epidermis and dermis from harmful effects of sun light. Thus, more melanin is produced.
The tanning effect that occurs when a person is exposed to the sun is exposed to the sun is somewhat protective due to?
Increased production of melanin.
How do you use the word stimulus in a sentence?
The stimulus package in the US has increased spending.
Why does the colour of skin varies among people?
Varying amounts of melanin (skin pigment) based on genes and or bodily response to irradiation from the sun. (sun exposure will cause increased melanin production, also known as getting 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.
How does ultraviolet b affect melanin?
Exposure to ultraviolet B radiation increases the production of melanin.
What is the definition of maximal stimulus?
The maximal stimulus is the strongest stimulus that produces increased muscle contractile force.
What are melanocyte job?
skin pigmentation, melanin production
If you stay out of the sun what will happen?
Production of melanin in the skin decreases; so does production of vitamin D.
Why are some persons skin darker than others?
Some peoples skin are darker due to the production of melanin which is made by melanocytes. When a person is in direct contact with the sun it triggers the production of melanin to be made.
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.
