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What else can I help you with?
Why is it a poor idea to sterilize a petri dish with UV light?
UV light can damage the DNA of microorganisms, but not all bacteria are affected equally. Some bacteria are resistant to UV light and can survive, leading to a false sense of cleanliness in the petri dish. It is more effective to use heat or chemical methods to sterilize a petri dish.
What types of solar radiation penetrate the atmosphere?
UV
What 2 organisms were combined to create the message to bill in the Petri dish?
In the Petri dish experiment, the message to Bill was created by combining two organisms: a species of bacteria, specifically Escherichia coli (E. coli), and a type of bioluminescent jellyfish, which contains the green fluorescent protein (GFP). The E. coli bacteria were genetically engineered to express the GFP, allowing them to emit a glow that formed the letters of the message when exposed to UV light. This innovative approach showcased the potential of synthetic biology in communication and artistic expression.
Why uv-A is not harmful?
UV-A rays are less energetic than UV-B and UV-C rays, and they can penetrate deeper into the skin. While UV-A rays can contribute to skin aging and wrinkling, they are less likely to cause immediate harm such as sunburn or skin cancer. It is still important to protect the skin from excessive UV-A exposure by wearing sunscreen and protective clothing.
Does earth's atmosphere block all uv radiation from space?
No, Earth's atmosphere does not block all UV radiation from space. It does absorb a portion of the UV radiation, particularly the most harmful UV-C rays. However, UV-A and UV-B rays are able to penetrate the atmosphere to some extent and reach the Earth's surface.
Can uv light penetrate petri dishes?
Yes, UV light can penetrate petri dishes made of glass or clear plastic. However, the degree to which UV light penetrates the dish will depend on the thickness and material of the dish. Thicker or opaque dishes may block some UV light.
Why were you told to remove the plate covers priors to exposing them to UV?
Petri dish plate covers are made of either thick glass or plastic. UV rays cannot penetrate through them to get an adequate reaction from the substance.
Why were you told to remove the plate covers prior to exposing them to UV?
Petri dish plate covers are made of either thick glass or plastic. UV rays cannot penetrate through them to get an adequate reaction from the substance.
Why is it a poor idea to sterilize a petri dish with UV light?
UV light can damage the DNA of microorganisms, but not all bacteria are affected equally. Some bacteria are resistant to UV light and can survive, leading to a false sense of cleanliness in the petri dish. It is more effective to use heat or chemical methods to sterilize a petri dish.
Can UV rays penetrate glass of petridish?
Yes, UV rays can penetrate glass, but the amount of UV radiation that passes through glass may depend on the type and thickness of the glass. It is generally recommended to use special UV-transmitting glass if working with UV-sensitive materials in a laboratory setting.
What types of solar radiation penetrate the atmosphere?
UV
How do you stop uv waves from going through plywood?
uv waves cannot penetrate plywood
Does UV light penetrate through clouds?
Yes, UV light can penetrate through clouds, although the amount that reaches the Earth's surface is reduced compared to a clear sky.
Why can UV light penetrate skin?
UV light doesn't fully penetrate it. At deepest, it only penetrates less than a millimeter and still doesn't make it past the top layer of skin.
Can UV rays go through wax paper?
yes, but it drastically reduces them
What do uv rays penetrate?
UV rays can penetrate through the Earth's atmosphere and reach the surface of the skin, causing damage such as sunburn and skin cancer. They can also penetrate through clouds and glass, so it's important to protect the skin by wearing sunscreen and protective clothing when exposed to sunlight.
How do UV rays penetrate water and affect aquatic life?
UV rays penetrate water and can harm aquatic life by damaging their DNA, causing mutations, and affecting their growth and reproduction. UV rays can also disrupt the food chain by harming phytoplankton and other organisms at the base of the food web.
