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18 Cards in this Set
- Front
- Back
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Cell Theory
(3 points) |
- All organisms are composed of one or more cells
- Cells are the basic living unit of structure and function in organisms - All cell come only from other cells |
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Types of Cells
(Two) |
Prokaryotic
Eukaryotic |
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Cell
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The cell is the smallest structure capable of performing all the functions necessary for life.
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How are Prokaryatic and Eukaryotic cells different?
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Prokaryotic cells lack membrane enclosed structures/organelles.
OR Eukaryotic cells possess membrane enclosed structures/organelles. |
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Which needs to be larger: Cell volume, or cell surface area?
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Cell surface area. The ability to get materials and and out of the cell depends on the available surface area.
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As a cell increases in volume, does it's proportionate surface area INCREASE or DECREASE?
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The surface area decreases in proportion to the growth in volume.
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What kind of membrane surrounds all cells?
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Plasma membrane.
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What material is inside of a cell? (In the space.)
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Cytoplasm.
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What regulates what goes in and out of a cell?
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The plasma membrane.
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What characteristics does a prokaryote cell have that eukaryotic cells do not have?
(Five points.) |
1. A nucleoid - Instead of a nucleus, where the chromosomes are.
2. Capsule - A gel-like coating outside the cell wall. 3. Structually simple 4. Metabolically diverse 5. Adapted to most types of environments |
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What are four characteristics of eukaryotic cells that are not true of prokaryotic cells?
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1. Have a nucleus
2. Possess membrane-bound organelles 3. Structurally complex 4. May have a cell wall |
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What are cell membranes made of? (Surrounding the cell itself, and the cell organelles.)
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Phospholipid bilayer.
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Do animal cells have cell walls?
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No, plant cells only.
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Do plant cells have lysosomes?
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Yes, plant cells have lysosomes but animal cells do not.
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Do animal cells have chloroplasts?
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No, animal cells only have mitochondria. Plant cells have mitochondria AND chloroplasts.
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Do animal cells have centrioles?
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Yes, only animal cells have centrioles.
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What pattern of microtubules do centrioles have?
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9+0, nine sets of triplets and a central tubule.
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What pattern of microtubules do cilia and flagella have?
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9+2, nine sets of doublets and two central tubules.
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