1. This week we learned about the process of protien synthesis. We also learned about the organelles again. We all made analogies comparing a cell and something that we thought was like a cell in some sort of way. I learned that the process of protien synthesis goes like this..
First the DNA gets a message. The mRNA then gives that message to the rbosomes. The ribosomes solve that message and tell the amino acids what they have to do. They DNA unzips and the amino acids match up with a base. Three bases put together form a codon. Finally, the codon makes RNA.
2. I learned about the process of protein synthesis by playing this game in class. Different students acted as different organelles and we acted out the process of protiensynthesis. I think participating in this game really helped me learn about proteinsynthesis. I learned about the organelles by making an analogy. I think that this helped me learn about them because I really had to think about the organelles and their functions to make a correct analogy.
3. This is important to know because it will really help me be more prepared for the test on Monday. It is also important to know about these things because they will help me in future scientific investigations because i will be able to identify protiensynthesis and also identify the different types of organelles.
Saturday, December 19, 2009
Saturday, December 12, 2009
Blog 12-The steps of photosynthesis
First, a message is sent to the cell to see how much protien it needs to make. The DNA starts to come undone so there is only a gene that has to do with that protien. The nucleotides match up with on sugar backbone to make mRNA. A matches up with U and C matches up with G. Many copies of RNA are made and they leave the nucleus and enter the cytoplasm. The RNA comes together with a ribosome and the ribosome reads the message that the RNA had. There are codons and they have to be read. When that is finished the right amino acids are activated by an enzyme. Then the amino acids attaches to the correct tRNA, or a transfer RNA. Then that tRNA goes and conects to the next one and so on! That happens until everything is read and it forms a polypeptide chain. The polypeptide folds as it's final transformation. Multiple copies of protien are made in this process. The mRNA is recycled so it can be used in different transformations.
Sunday, December 6, 2009
Science Blog 11
1.What science ideas did you learn?
This week i learned about photosynthesis and respiration. We learned how to make the equations even. We also learned about fermantation and how that is respiration without oxygen. We learned that fermantation gives of alcohal instead of CO2. We also learned about DNA. We actually got to see real DNA from James' spit! We talked about how the DNA could be so big when the cell that it's in is microscopic.
2.How did you learn these ideas?
We learned about these ideas by doing research. We learned abotu respiration by doing experiments and having class disscusions to see what everyone thought. We learned about photosynthesis the same. We learned about fremantation because half of the class did an experiment that involved a balloon on a vial and we were going to see if the balloon grew, it did. We learned about DNA by doing this experiment where someone swooshes water in their mouths to collect DNA and then we added some other liquids to it. This helped us see the DNA and we could actually see what it looked like.
3.How might these ideas be helpful?
These ideas will be helpful because now that we are more educated on respiration, photosynthesis, and DNA, we can come to better conclusions about what we observe. If we see white and stringy stuff we will know that there is a possibiliy that it is DNA. If we see condensation on something we will know that something has to be respirating. Finally, if we see something moving that means it needs photosynethesis into energy.
This week i learned about photosynthesis and respiration. We learned how to make the equations even. We also learned about fermantation and how that is respiration without oxygen. We learned that fermantation gives of alcohal instead of CO2. We also learned about DNA. We actually got to see real DNA from James' spit! We talked about how the DNA could be so big when the cell that it's in is microscopic.
2.How did you learn these ideas?
We learned about these ideas by doing research. We learned abotu respiration by doing experiments and having class disscusions to see what everyone thought. We learned about photosynthesis the same. We learned about fremantation because half of the class did an experiment that involved a balloon on a vial and we were going to see if the balloon grew, it did. We learned about DNA by doing this experiment where someone swooshes water in their mouths to collect DNA and then we added some other liquids to it. This helped us see the DNA and we could actually see what it looked like.
3.How might these ideas be helpful?
These ideas will be helpful because now that we are more educated on respiration, photosynthesis, and DNA, we can come to better conclusions about what we observe. If we see white and stringy stuff we will know that there is a possibiliy that it is DNA. If we see condensation on something we will know that something has to be respirating. Finally, if we see something moving that means it needs photosynethesis into energy.
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