Lesson 20 Summative Assessment: What model can we make to connect everything we have learned so far to explain how trees can reverse climate change?
While watching television recently, you see a commercial that says you can help to make climate change not as bad as it could be. The commercial tells you that all you need to do is plant trees! There are three claims made in the commercial: 1) trees can take carbon out of
the atmosphere, 2) trees store some of the carbon they take from the atmosphere to make wood, and 3) some carbon from trees goes into
and gets stored underground
Directions: Using ALL the terminology from your Summative Model Planning Sheet, strengthen the explanation provided in the commercial
for why
you should plant trees by providing the evidence for each of the claims provided. Also, create a model of these processes.

  a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein