Download 3.1 Study Guide KEY

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CELL THEORY
3.1
Study Guide
KEY CONCEPT
VOCABULARY
Cells are the basic unit of life.
cell theory
organelle
cytoplasm
prokaryotic cell
eukaryotic cell
MAIN IDEA: Early studies led to the development of the cell theory.
In
a phrase,
tell what each scientist did to help develop the cell theory.
Scientist
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Gontribution to Cell Theory
1. Hooke
First to identify cells and name them
2.
Leeuwenhoek
Observed live cells and observed greater detail.
3.
Schleiden
Concluded that plants are made of cells.
4.
Schwann
5.
Virchow
Concluded that animals and, in fact, all living things are made of cells.
Proposed that all cells come from other cells.
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6.
What are the three parts of the cell theory?
All oroanisms are made of cells. All existino cells
oroduced bv other livino cells, The cell is the
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most basic unit of life
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7. Give fwo reasons why
the cell theory is important.
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Unit 2 Resource Book
McDougal Littell Biology
Study Guide 1
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STUDY GUIDE, CONTINUED
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MAIN IDEA: Prokaryotic cells lack a nucleus and most internal structures of
eukaryotic cells.
In the top left side of the Y shape below, write the characteristics of eukaryotic cells, In
the top right side of the Y shape below, write the characteristics of prokaryotic cells. At
the bottom of the Y shape beloq write the characteristics that both kinds of cells have in
common, Then lightly cross out those characteristics at the top of the Y.
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Prokaryotic cells
Eukaryotic cells
surrounded by a cell membrane; contains
cytoplasm; tends to be microscopic in size;
prokaryotic organisms are single-celled
surrounded by a cell membrane; contains cytopla
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ds to be microscopic in size; eukaryotic organisms
be single-celled or multtcellular
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Vocabulary Gheck
8.
What is cytoplasm?
a jellylike substance that contains dissolved molecular building blocks and , in some types of cells, organelles
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Where do you find organelles?
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in the cvtoplasm
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1O. What statements summarize scientists' concepts of cells?
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11. Which type of cells have no nucleus?
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orokarvotic cells
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Study Guide
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Unit 2 Besource Book
McDougal Lìttell Biology