Tuesday, February 7, 2012
Why do fireflies glow
Use the following website to examine why fireflies glow (http://learn.genetics.utah.edu/content/begin/dna/firefly/). Be sure to discuss the process by which fireflies glow (chemical process: you have to play the simulation). Also include why fireflies glow (its not to create pretty lights for us to be astonished by either). Their are some interesting facts at the beginning of the page before you play the simulation. This is due Next Wednesday, Feb 15, 2012..
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There is a chemical in a fireflies tail called lucibufagens. The mRNA copies a luc gene when the copying is done the LUC gene moves to the cytoplasm the the luc mRNA is recongized by the ribosome and then read to make many different luciferase enzymes and then its folded in a three dimensional shape.To make a luciferase enzyme glow it must be bound with luciferin.Luciferase enzymes are what make the tail of a firefly glow.Luciferase enzymes require energy to give off the appropriate amount of light needed to be able to see in the dark.Fireflies use there glow to attract mates and to scare off predators.
ReplyDeleteIn the nucleus of every cell RNA Polymerase finds the DNA code within the genome. The luc gene specifies the sequence of Amino Acids that compose the luciferase enzyme. The RNA Polymerase copies the luc gene in mRNA during transcription. After completing transcription the luc mRNA continues on to the cytoplasm. The luc mRNA is recognized by the ribosome in the cytoplasm where it interprets the information to produce a string of amino acids. These amino acids make up the Luciferase Enzyme, during the process called translation. The completed string of amino acids bend and fold to shape a three dimensional figure. To generate a light that is visible the cells in the tail of the the firefly need to produce thousands of luciferase enzymes at once. Inside the cells the new enzymes seek out and attach to chemicals called luciferin. The luciferase enzyme causes a chemical reaction that combines an oxygen molecule with luciferin to form oxyluciferin.This reaction needs energy and it releases light. With so many luciferase enzymes releasing light at once it makes a visible light. This light attracts mates and warns off predators. Fireflys contain a chemical called lucibafagens, which is a disturbing taste that predators can remember not to eat again.
ReplyDeleteFireflies use an enzyme, called luciferase, to glow. First the luciferase is made inside the cell using the standard processes of transcription and translation. In the nucleus, the mRNA copies the LUC gene from the DNA. The mRNA is then sent to the ribosomes, where translation occurs and luciferase is made. The enzyme is then processed further so that it can function.
ReplyDeleteThe function of this enzyme is to bind to the chemical luciferin and combine it with an oxygen molecule. This creates oxyluciferin and the chemical reaction results in the release of light. The light that fireflies make is used to attract potential mates. The chemicals that cause the glow also taste horrible to animals. This defense mechanism allows the fireflies to avoid being eaten because larger animals wish to avoid experiencing the foul taste.
Tasha Wade
ReplyDelete2/15/12
AP Biology
B-1
the reason why fireflies glows is due to a chemical reaction. Whenever their tails glow, the fireflies cells in its tail create this protein called Oxylucifern. The process is very similar to how humans make proteins, in fact, it is almost exaclty the same. the only real difference is that because they are insect, each protein they receive does spomething different. When the protein is complete, it releases enegry through visible light. So, every time a firefly glows, it has produced more and more proteins.
Lexus Moore
ReplyDelete2/15/2012
B-1
Fireflies are able to glow, due to an enzyme by the name of luciferase. Luciferase require much energy in order to get the appropiate glow during the night.Luc is made inside of the cell.In the nucleus mRNA copies the luc gene from DNA. Later the luc gene will then move to the cytoplasm, where then it itranslated to the ribosomes to make different luc enzymes so that the firefly can grow
fireflies contain an organic compound in their abdomens called luciferin. As air rushes into the abdomen, it reacts with the luciferin. A chemical reaction gives off the familiar glow of a firefly. This light is sometimes called “cold light” because it generates so little heat. The firefly can regulate the airflow into the abdomen to create a pulsating pattern. Some experts think the firefly’s flashy style may warn predators of the insect’s bitter taste. On the other hand, some frogs don’t seem to mind. They eat so many fireflies that they themselves begin to glow. Male fireflies also light up to signal their desire for mates – and willing females attract the males with flashes of their own. But the really reason why fireflies glows is due to a chemical reaction. Whenever their tails glow, the fireflies cells in its tail create this protein called Oxylucifern. The process is very similar to how humans make proteins, in fact, it is almost exaclty the same. the only real difference is that because they are insect, each protein they receive does spomething different. When the protein is complete, it releases enegry through visible light.every time a firefly glows, it has produced more and more proteins.
ReplyDeleteFireflies are very unique animals but the reason they glow is not for us to see them and enjoy their glow.They glow because of the enzyme luciferase.It takes translation and transcription to make luciferase.First RNA polymerase copies the luc gene in the form of mRNA and this process is Transcription.After this, the luc mRNA moves to the cytoplasm which has the ribosomes.The ribosomes interprets the information in the luc mRNA to produce a string of amino acids that make the luciferase enzyme. This process is called translation.Next the string of amino acids must bend to fold into a three dimensional shape so that they can function properly.
ReplyDeleteIn order to have a visible light, the cells in the firefly's tail end need to produce thousands of luciferase enzymes at once. Then, the enzymes bind to a chemical called luciferin.An oxygen molecule combines with luciferin to form oxyluciferin.This reaction requires energy and it releases light.This light made by fireflies help them attract mates and warn off the predators.
Fireflies glow because of a chemical reaction called luciferase that generates light. This chemical reaction is produced in the firefly's tail. An enzyme RNA polymerase copies the LUC gene through a process called transcription which turns LUC into the form of mRNA.After the transcription is complete LUC moves to the cytoplasm then attracts to the ribosome. The ribosome takes the LUC(mRNA) strand to produce a sring of Amino Acids. This process is called translation because it is translateg the LUC mRNA into the lucirferase enzyme.The Amino Acids then turns into a three-dimensional shape in order for the lucirferase enzyme to work. The firefly must produce thousands of lucirferase enzymes at a time in their tail in order to have visible light.
ReplyDeleteFireflies glow to attract mates and fight off predators. They attract mates by signaling flash signals back and forth to each other. The glow fights of predators due to the bad tasting of the chemical reaction in the fireflies.
cells in fireflies tails produce a luciferase enzyme. the rna polymerase finds the dna encoding the luc gene within the cell's genome. the luc gene specifies the sequence of amino acids that make up the luciferase enzyme. when the transcription is complete, the luc mrna moves to the cytoplasm.to generate a visible light the cells need to produce a thousand of luciferase enzymes at once.
ReplyDeletethey attract mates and warn predators off. they are filled with an nasty tasting chemical "lucibufagens". if they dont have that chemical dey will eat another firefly that does.
leon moore 1B
Savetra Brown
ReplyDelete1-B
Fireflies glow because of a chemical reaction called luciferase that generates light. In the nucleus of every cell RNA polymerase finds the DNA code within the genome. Whenever their tails glow the fireflies cells in their tails create this protein called oxylycifern. The fireflies go through translation and transcription just like humans does. Fireflies glow to attract mates by signaling flash signals back and forth to each other. The glow also fights off predators due to the bad taste of the chemical reactions in the fireflies.
Stephanie thompson The glow the firefiles create are because of the enzyme or chemical reaction called Luciferase. The enzyme RNA polymerase copies the luc gene through a process called transcription. Transcription turns luc into the form of mRNA. Then a process called translation occurs. The mRNA moves to the cytoplasm that has the ribosomes. The ribosomes uses the information it recieves to make a string of amino acids. That string of amino acids actually makes the luciferase enzyme. The function of this enzyme is to bind to the chemical luciferin and combine it with an oxygen molecule. Oxyluciferin is created and the reaction gives off light in the firefly. The light attracts mates and to scare away other animals. It also has a bad taste so animals try to stay away from eating firflies.
ReplyDeleteElizabeth Edge
ReplyDeleteFireflies glow because their cells in their tail produce luciferase enzyme, a chemical reaction that generates light. They glow to attract males and to avoid predators. In the nucleus of each cell, an enzyme called RNA polymerase finds the DNA encoding the LUC gene within the cell's genome. The LUC gene specifies the sequence of amino acids that make up luciferase enzyme. RNA copies the LUC gene in the form of mRNA. MRNA moves to the cytoplasm. The luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule with luciferin to form oxyluciferin.
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