Science Class

Over the week we did lots of cool and very interesting things.

Monday:

On Monday, we basically just reviewed for our upcoming important test. In my science class we did a review demonstration of DNA transcription. The way we did this was we took people in our class and had them be a nuclear membrane and the nucleus. Then we had another person in my class was the ribosome. I had trouble with Protein Synthesis earlier this week, the I looked at Camile's blog. It helped me understand it so much better!! I now realize that the messenger RNA has all the instructions, then it brings all the information to the ribosome. Then in the Ribosome, the info is translated into amino acids. Next, the messenger RNA get the transfer RNA and brings it to the ribosome. After the Amino acids are made, the disconnect themselves from the actual ribosome. Lastly, the amino acids curl and fold up which makes a protein!!!

Tuesday:

On the Tuesday we reviewed transfer RNA and messenger RNA. I didn't really understand this topic at the time. But after I went back and took a look at my notes, it was starting to get all clear for me then. I understood that the transfer RNA's job was just to take directions and orders to the ribosome.

Wednesday:

During class today, we talked about cellular reproduction. The way this happens is, the nucleus splits into 2 and goes to another cell. Then the organelles start to duplicate and double. If you start out with 1 cell it would take about 10 seconds to form about 1 billion cells.

Thursday:

On Thursday we just took some notes on DNA transferring and replication, I took about 2 pages worth of notes! My notes included a picture that the DNA was being held in the middle of it by hydrogen. Also, glucose is held together by hydrogen bonds, which are also called codons. These bonds are very very stable. But, when a hydrogen bond is broken, all the energy from it is released.  We also did a lab where we took an onion root tip and looked at the DNA and organelles frozen in time. There was a worksheet that came with it too.

Friday:

On friday, we talked about the test on Wednesday. We also finished the lab that we started on Thursday. We went over the Homework and found out on some peoples' that the sides of DNA are either the uracil,guanine,thymine, and, adenine. Those are again, connected by hydrogen bonds filled with energy. If this doesn't help you Mr. Finley will host a study session on Tuesday morning.