C
The cell theory grew out of work of many scientists and improvements in the ______
First person to use the term cells
Robert Hooke
smallest unit of a function
A cell
What is a unicellular organism?
An organism composed of one cell.
Scientific name for "living thing"
Organisms
All cells come from _________ cells.
Pre-existing
He discovered unicellular organisms
Anton Van Leeuwenhoek
all organisms are composed of
cells
What is a multicellular organism?
An organism with two or more cells (multiple cells).
Anton Von Leeuwenhoek discovered unicellular organisms by ____________.
Scraping gunk off his teeth and looking at it under the microscope.
When cells make copies or replicate themselves is called _______.
Proposed that all cells result from the division of previously existing living cells
Rudolph Virchow
cells are the basic unit of
life
What does composed of mean?
Made up from
What shape is an animal cell?
Circle
Name all three parts of cell theory.
1. Cells are the basic unit of life.
2. All organisms (living things) are composed of one or more cells.
3. All cells are are made from pre-existing living cells.
Proved that all animals are made up of cells
Theodore Schwann
What is an example of unicellular organisms are __________.
Bacteria and Amoebas
List an example of each Level of Organization from Simplest to Most Complex
Cells-Tissue-Organ-Organ System-Organism
Answers may vary
What shape is a plant cell?
Square
Scientific term for cell division is ________.
Mitosis
Proved all plant tissues are made of cells
Matthias Schleiden
cell theory is important to
biology- studying living organisms. Without cells there would be no life on Earth. Cell theory explains how cells come to be.
What does pre-existing mean?
Already existing.
True or False:
Humans and plants are unicellular organisms?
False, they are _________?