May 2017 archive

DNA Model


once you understand how each of the parts function you can understand how they are put together. The gene is the idea or the blueprint. DNA is the language or the way genes are written down. Chromosomes are structures that cells use to organize their DNA for cell division. Chromosomes typically contain thousands of genes, written in DNA, there are a few situations where genes are written in something other than DNA, like the RNA of viruses and the proteins of prions, but none of these are universally regarded as alive.

licorice= sugar/phosphate backbone

the marshmallows represent the 4 chemical bases in DNA

guanine (G)= green marshmallow

cytosine (C)= pink marshmallow

adenine (A)=yellow marshmallow

thymine(T)=orange marshmallow

3. this activity helped with understanding DNA because the colour of the marshmallow helps you understand which of the chemical bases go together and the licorice which represents the backbone shows how without it the whole structure would fall apart.


Plant & Animal Cells

1.the plant cell looks like a brick wall with the cell wall

2.round, you can only see the nucleus aswell.

3. because the plant cell is onion and because of that it has a pinkish colour. the animal cell is harder to see because it is smaller, so we used the blue dye to make it more noticeable

4.i learned about the difference between plant and animal cells and how you can tell where the nucleus and the other structures in the cell.