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10 Cards in this Set
- Front
- Back
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Cell
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The cell is the structural and functional unit of organism.
Diseases such as cancer and diabetes are caused by cells malfunctioning, not organs. |
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The Cell Theory
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“All organisms are composed of cells and that cells come only from preexisting cells.”
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Why are cells small?
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A large surface area compared to volume ratio is necessary for material to move into and out of the cell
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Prokaryotic Cells
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*Belong to bacteria
-Smaller -Simpler -No membrane bound organelles |
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Bacteria
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Can cause disease
*Are decomposers *Convert atmospheric nitrogen into *a usable form by plants *Help humans digest their food |
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Plasma membrane
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Surrounds the cell
controls what enters and leaves the cell |
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Cytoplasm
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The semifluid solution encased by the plasma membrane
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The Organelles
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The small structures found in the cytoplasm that have a specific structure and function
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The nucleus
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Contains the DNA.
Chromosomes contain DNA and protein. DNA contains the genetic information |
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Ribosomes
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Both eukaryotic and prokaryotic cells contain ribosomes. They are smaller in prokaryotic cells.
They contain two subunits –one large and one small. Each subunit is a mix of protein and RNA. |
