Cell Theory

All cells -----

• come from other dead cells

• come from other living cells

• crystallize out of the air

What is NOT part of the modern cell theory?

• all cells contain a nucleus 

• metabolism (processing energy) occurs in cells

• genetic (hereditary) info is passed from one cell to another

• all cells have the same basic composition (a cell membrane, cytoplasm, cytoskeleton, ribosomes, etc).

Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

All living things are made up of...

• cells
• cell tissues
• organ
• organ systems

Cells are often called "the ____ of life."

• bread
• road map
• building blocks
• meaning

What tool do you use to view the cells?

• metric ruler
• centrifuge
• microscope
• telescope

Who looked at cork and named the cell?

• Robert Hooke
• Van Leeuwenhoek
• Robert Brown
• Francesco Redi

A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?

• Plants have cells but animals do not.
• They are both made of one or more cells. 
• They both come from the same kind of cell.
• They both come from a non-living organism.

All organisms are made of:

• organelles
• cytoplasm
• DNA
• cells

what is a cell classified as?

• a basic unit of structure and function of all living organisms
• a unit based on only plants and animals that are living