Week of January 12-16

This week we reviewed about protein synthesis and got started on a new unit about reproduction. On Monday we reviewed everything about how DNA uses Thymine instead of Uracil. And RNA uses Uracil instead of Thymine. We learned also how cytoplasm, ribosomes,and also the rough ER are involved in the process of protein/enzyme synthesis. A codon has a group of nuclaic bases. mRNA delivers the information from the nucleas about the DNA and proteins and brings it to the ribosomes which are in the rough ER. The ribosomes read the mRNA codon by codon and as they are doing this amino acids are being released. So tRNA go and bring the acids by the specific codon. On one side of the tRNA is the binding site for the amino acid and the other is the anticodon designed to the specific amino acid. Then the amino acids stack on top of eachother like a ladder. They do this until all of the amino acids are stacked together and then they become a disorganized line which is the protein. That night we made a map of the whole process and on Tuesday we went over it.
On Tuesday we went over it by acting it out. Someone was the Ribosome, someone was the tRNa, and some people were amino acids, and ect. Then after we did that we started the new unit on reproduction. We got started on the basis that cells come from other cells. Continuing from this we learned that there are two kinds of reproductions. There is sexual reproduction and asexual reproduction. Sexual reproduction is when you need a sperm cell and an egg cell, which when combine create an organism like an animal or a human. And with reproducing sexually the cells/organisms are'nt exactly the same. Asexual reproduction is when you don't need a male or a female. For example cells reproduce asexually by duplicating and the cells are exactly the same.
On Wendsday we went over everything and most of us got started on the studyguide to study for the test on next Wendsday. We also worked on a work sheet on the last few days of the week. We looked at the tip of an onion root which we examined. GOOD LUCK ON THE TEST EVERYONE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!