CELL DISCOVERY
Who discovered cells?
Robert Hooke
What do we call an organism made of one cell?
Unicellular
Which type of cell has a nucleus—prokaryotic or eukaryotic?
What do we call the ability of the cell membrane to let things in and out?
Permeability
What is diffusion?
Movement from high concentration to low concentration
What object was Robert Hooke looking at when he saw cells?
A thin slice of cork
Give one example of a unicellular organism.
Bacteria, yeast, amoeba
What type of organisms are prokaryotic?
Bacteria
What is endocytosis?
The cell taking materials in
What makes osmosis different from diffusion?
Osmosis is the diffusion of water
In what year were cells discovered?
1665
Why are multicellular organisms different from unicellular ones?
They have specialized cells that do different jobs
Name one difference between prokaryotic and eukaryotic cells (besides the nucleus).
P are simpler, smaller, no membrane-bound organelles; E are complex with organelles.
What is exocytosis?
The cell pushing materials out
Give an example of osmosis.
Water moving into plant roots, raisin swelling in water