RNA and Protein Synthesis When a piece of DNA replicates, then it must send it’s information to the cell to make the proteins that support the cell.

What is a protein? Why are they important? Where are they made in the cell? What makes them? Why are they so different?

Nucleic acids are the same in RNA (Ribonucleic Acid) as in DNA with one exception, Thymine is too big to be held by a one sided molecule so it is replaced by Uracil. So A-U and C-G are the pairs in RNA Single sided ladder structure that has sugar and phosphates and nucleotides.

The way this is done is with the help of the nucleus and the ribosomes. Ribosomes are the structures where the proteins are made or put together. Proteins are made of macromolecules and these are small elements strung together like beads on a necklace.

The Ribosome is where the stringing takes place. The DNA is split in the nucleus, just like in replication, but instead of a new piece or half of DNA being made, a piece of RNA comes into the nucleus and reads the “code” from the DNA

http://t2. gstatic. com/images http://t2.gstatic.com/images?q=tbn:ANd9GcS_mrRylNJDSKeAXsdIJH4gbindoX8upGReFuCTqO_aas2EnePv:nar.oxfordjournals.org/content/32/1/223/F1.large.jpg

Once the code is read, the RNA (mRNA , messenger RNA) then leaves the nucleus and takes that information to the ribosome. Once in the ribosome the tRNA hooks up with a rRNA (ribosomal RNA) and then transfers the code. Once the code has been transferred to rRNA then tRNA looks at the triples of nucleotides.

HW Draw and label a piece of DNA include the nucleotides and their matched pairs. Draw and label a piece of RNA that is transcribing the information from the DNA in the nucleus.

Those triples are called codes. See chart on page 207 Those triples are called codes. See chart on page 207. The code is the rRNA and the codon is the mRNA (messenger RNA) and the proteins are made from the codons. These codons make amino acids and those amino acids string together to make proteins.

Proteins: Amino acid after amino acid makes a necklace of material that creates a protein (hair)

DNA RNA-Protein Synthesis

HW Chapter 10 Sections 3 and 4 Draw and color with some details: 1. Replicating DNA 2. RNA and Protein synthesis You need to include what is happening and where it is taking place for the steps. Chapter 10 Sections 3 and 4