Science Class- Jan. 5-9

This week, we continued to learn about different processes going on in a cell. We discussed cellular respiration, photo synthesis, and fermentation, and took notes. On Thursday, we went on some websites and learned about the energy pyramid. We also learned about some other things, like the energy pyramid.

Cellular respiration is when the cells get energy from glucose (C6H12O6). This process takes place in the mitochondria. The mitochondria starts with the glucose and oxygen as the reactants, and ends up with energy, water, and CO2 as the products.

Fermentation is the process where energy is gotten from the glucose without the oxygen. This process occurs in the mitochondria. An example of this is in the muscles at the end of an exercise. Your muscle cells hurt because some kind of acid is produced from fermentation.

Photo synthesis is when glucose (C6H12O6) is produced. Photo synthesis takes place in the Chloroplast, and only in a plant cell. The reactants are water, CO2, and the sun's energy. The Products are glucose and oxygen.

glucose scientific equation: light + 6(CO2) + 6(H2O) -> C6H12O6 + 6(O)

Transcription is when the DNA's gene sequence is copied into the messenger RNA. This happens in the nucleus.

Translation is when the mRNA is read by the ribosomes, and it is translated into the amino acid sequence of protein.

http://learn.genetics.utah.edu/content/begin/dna/transcribe/ has a good simulation of transcription, and has a good summary of transcription and translation.

http://www.wisc-online.com/objects/index_tj.asp?objID=AP1302 has very detailed steps of everything that goes on during transcription and translation.