Memory Anchor:

• Students to sort prepared slides or diagrams of unicellular organisms based on their characteristics.

Super Challenge:

Stretch:

Challenge:

Key Questions:

1. What does unicellular mean?
   • UniCellular organisms are living things made up of only a one Cell.
2. What does multicellular mean?
   • MultiCellular organisms are living things made up of many Cells.
3. Name 3 types of unicellular life.
   • Bacteria, Protozoa and Yeast are examples of uniCellular organisms.
4. What are the parts of a bacterial cell?
   • A bacterial Cell consists of cytoplasm and a membrane surrounded by a Cell wall; the genes are not in a distinct nucleus. Some Bacteria may have Flagella (tails) to swim.
5. What organelles do yeast cells have?
   • Yeast Cells have a nucleus, cytoplasm and a membrane surrounded by a Cell wall.
6. What are pseudopodia?
   • Protoza have pseudopodia (“false feet”) to move about and to surround food and take it inside the Cell. Protoza have temporary vacuoles containing waste.
7. Can you see unicellular or multicellular organisms with the naked eye?
   • You can see multiCelluar organisms with the naked eye. Most uniCellular organisms are too small to see without a microscope.