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What are the three parts of the cell theory?
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What did Hooke do?
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Cell Theory

Term OR QuestionDefinition OR Answer
What are the three parts of the cell theory? 1) Every living thing is made of one or more cells 2) Cells are the basic units of structure that carry out the functions needed to support life 3) Cells come only from other living cells
What did Hooke do? Hooke gave the cell its name while looking at cork.
What did Schwann do? Schwann was the first to conclude that all animals are made of cells.
What did Leeuwenhoek do? Leeuwenhoek was one of the first people to describe living cells. He studied pond water under a microscope.
What did Schleiden do? Schleiden concluded that all plants are made of cells.
What did Virchow do? Virchow determined that all cells must come from preexisting cells.
Organelle part of a cell
structure how something is built, what it looks like
function what something does, it's purpose
prokaryote single celled organism with no nucleus or mitochondria ex. bacteria
eukaryote single or multi celled organisms that contain nucleus, mitochondria ex, protista, fungi, plants, animals
unicellular one celled organism
multicellular many celled organism
cell membrane separates the cell from the outside environment; allows some substances to go in or out; prevents some substances from going in or out
mitochondria "power plant" that takes glucose and oxygen and makes ATP energy
nucleus control center; contains DNA
vacuole temporary storage areas for water, food, or waste
lysosome helps break down unwanted cell parts and substances from outside the cell
golgi bodies packages proteins and large molecules to use in the cell or to secrete outside the cell
Endoplasmic reticulum transports proteins around the cell
cytoplasm gel-like substance in the cell that store chemicals and carry out life processes
ribsomes produces proteins (found in cytoplasm or on rough ER)
choroplasts produces glucose - found only in plant cells
cell wall the rigid structure that surrounds plant cells and provides shape and support
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