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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Why are cells so small? |
To maintain homeostasis; 1. Takes in food 2. Eliminates waste 3. Volume Increases before surface area. |
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What devices do we use to observe cells? How are they different? |
Light microscope, Transmission electron, & Scanning electron |
Transmission has a film or screen & Scanning has electron detector. |
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Prokaryotic cells |
Smaller, simpler, most do not have membrane -enclosed organelles, bacteria & archaea |
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Eukaryotic cells |
Larger, more complex, membrane enclosed organelles, & Protists, plants, fungi, animals. |
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Compare the position of the plasma membrane in prokaryotes, plants, fungi, & humans. |
Plasma membrane: thin outermost membrane that regulates entrance & exit of material. |
Prokaryotes: Capsule-cell wall-PM Plants & Fungi: Cell wall- PM Animals: PM |
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Nucleus |
Function: "The Brains" Nuclear Envelope; Chromosomes. In humans? Yes |
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Ribosomes |
Function: "The Workers" Assembled in nucleus; works in cytosol; may be on ER; have 2 subunits; has some RNA (rRNA) In humans? Yes |
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Endoplasmic Reticulum (Smooth & Rough). |
Smooth: No ribosomes; makes lipids; detoxifies drugs. Rough: Has ribosomes; makes membranes & proteins. Both in humans? Yes |
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Golgi Apparatus (body) |
Function: Works with ER- modifies & ships In humans? Yes |
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Lysosomes |
Function: digests macromolecules & damaged organelles Made by Golgi In humans? Yes |
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Vacuoles |
Function: Storage function In humans? No in plants |
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Chloroplasts |
Function: Plant "powerplant" energy conversion In humans? No |
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Mitochondria |
Function: Animal "Powerplant" energy conversion. In humans? Yes (plants have them too) |
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Flagella & Cilia |
Function: Locomotion; throat, respiration, & digestion In humans? Yes |
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Centriole |
Function: Helps create In humans? Yes |
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Cell wall & Plasmodesmata |
Function: protection & structure In humans? Yes |
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