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Unit 2 Biology Notes Cell Theory. Objective 2: Explain the components of the cell theory. . Cell Theory. One of the most fundamental concepts of biology states: All living things are composed of cells. Cells are the basic units of structure and function in living things. - PowerPoint PPT Presentation
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Unit 2 Biology Notes
Cell Theory
Objective 2: Explain the components of the cell theory.
Cell TheoryOne of the most fundamental
concepts of biology states: All living things are composed
of cells. Cells are the basic units of
structure and function in living things.
New cells are produced from existing cells.
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Unit 2 Biology Notes
Cell PartsObjective 3: Identify and explain the major functions of the following cell parts:
Nucleus, Cell Membrane, Cell Wall, Chloroplast, Mitochondria, Ribosome, and Vacuole
Use the following colors to color the plant and animal cell pictures:
Plant Cell: 1- light blue 2- brown 5- dark blue 6- black 8- pink 10- purple 11- green 12- orange 13- light yellow
Animal Cell: 1- orange 4- dark blue 5- black 6- pink 8- light blue 9- light yellow 11- purple
Cell Types
Specialized structures that perform important cellular functions
Cell Parts 1- Cell Wall 2- Cell Membrane 3- Mitochondria 4- Vacuole 6- Cytoplasm 8- Nucleolus 9- Nucleus 11- Ribosome 12- Chloroplast
Label the structures on the plant and animal cell pictures:
Plant Cell: 1- Vacuole 2- Cell Wall 5- Nucleus 6- Ribosome 8- Cell Membrane 10- Nucleolus 11- Chloroplast 12- Mitochondria 13- Cytoplasm
Animal Cell: 1- Mitochondria 4- Nucleus 5- Ribosome 6- Cell Membrane 8- Vacuole 9- Cytoplasm 11- Nucleolus
7Unit 2 Biology Notes
Animal Cells vs. Plant Cells
Objective 5: Use two characteristics to distinguish between animal and plant cells.
a. Presence of Cell Wall
b. Presence of Chloroplasts
Animal Cell
Ribosome (free)
Ribosome (attached)
Mitochondrion
Cell membrane
Nucleus
Animal Cell
Ribosome (free)
Ribosome (attached)
MitochondrionVacuole
Nucleus
Cell wallCell membrane
Chloroplast
Plant Cell
Plant Cell
Plant Cell Animal Cell
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Unit 2 Biology Notes
Cell Types
Objective 5: List and use 3 characteristics to distinguish prokaryotic and eukaryotic cells.
Cell Types Cells are divided into two major categories:
Prokaryotes and Eukaryotes. Major Characteristics of These Types of Cells Characteristic Prokaryotic Eukaryotic
Presence of Nucleus
NoNucleus
Nucleus
Size Small Larger
Complexity Very simple—no membrane-bound organelles*
More complex—has membrane-bound organelles*
Prokaryotic Cell
Cell membrane
cytoplasm
