51) All living organism use DNA as genetic language. What explains why they all

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51) All living organism use DNA as genetic language. What explains why they all have the same genetic language of DNA?

2) Thinking back to macromolecules of the cell, some of the macromolecules are considered polymers while otehrs are not. What is a polymer? Provide a list of 3 examples of polymers and 2 examples of non-polymers.

3) Draw an image of what an oil droplet would look like in a beaker of water. Think about what arrangment the phospholipids would form. Explain your reasoning for the orientation of phospholipids that you draw.

4) Phospholipids assemble in layers to make membranes for cells and organelles. Now draw a respresentation of the most stable (lowest potential energy) assembly of phospholipids where water is both inside and outside of the membrane. (This might be the membrane on a vacuole for instance). Explain your reasoning

5) What does the shape on the extracellular fluid side of this image represent? Circle one (large polar molecules, ions, small polar molecules, small non-polar molecules)'

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51) All living organism use DNA as genetic language. What explains why they all

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