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What we have learned so far…. • All living things are made of cells. • Cells are made of macromolecules – these macromolecules help the cell survive – Enzymes are one type of protein that help the cell survive • DNA is the code of life because it codes for proteins that make traits Next – How do cells get energy? – How do cells get rid of waste? – How do cells divide divide? Cells The microscopes From the electron microscope All cells have cytoplasm, cell membrane and genetic material (DNA or RNA) Elodea cells Onion cell Cheek cell Tree bark Potato Cells Tomato cells Use of the Microscope • 1. Check for low power • 2. adjust light • 3. Focus • Use high power only when object is centered and in focus under 100 X Activity Use of the microscope to see cells Make drawings or observations about the protist that you see.