Life is Cellular

What distinguishes a eukaryotic cell from a prokaryotic cell is the presence of

• a cell wall

• a nucleus

• DNA

• ribosomes

The human brain is an example of a(n)

• cell

• tissue

• organ

• organ system

Which is NOT a part of the Cell Theory?

• all living things are made up of cells

• Cells are the basic units of life

• New cells are produced from pre-existing cells

• All cells have a nucleus

_________ are small and simple cells that do not have a nucleus or other membrane-bound organelles.

• Prokaryotes

• Eukaryotes

• Plants

• Animals

All cells are surrounded by a thing flexible barrier called a cell (plasma) membrane.

• True

• False

Not all cells have cytoplasm.

• True

• False

All cells contain DNA (genetic material).

• True

• False

Levels of organization in humans are represented in the picture. Level X most likely represents

• molecules

• organelles

• tissues

• ribosomes

Microscopy includes using microscopes to see things that are too small to be seen with the naked eye.

• True

• False

I understand the material we've been learning so far about cells.

• Yes!

• Sort of.

• Not yet.