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| moves substances agianst their consteration gradient (usually powered by ATP) ex:the sodium potassium pump |
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| Moderates the entrance of substances across the membrane (disneyword entrance) |
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| The ability of a substance to cause a cell to gain or loose water. |
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| solution consteration is the same as that inside the cell: no net water movement across the membrane. ISO=EQUALL |
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solution consteration is greater than that inside the cell; cell looses water.
HYPER=MORE THINGYS OUTSIDE OF THE CELL...there hyper so they want to be outside. |
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solution consteration is less than that inside of the cell; cell gains water.
HYPO= (O)...A BUBBLE, there bubble children and want to stay safe inside of the cell. |
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| the control of water balance, is a nessacary adaptation in organismis with a hypertonic or hypotonic situation. |
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| The diffusion of water across a selectivly permable membrane |
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| requires no energy for the cell to make it happen...(channel and carrier proteins) |
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| the differance in consteration of a substance from one area to another |
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| bind to molecules and change shape to shuddle them across the membrane (specific to the substance it moves) |
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| visable light passes through the speciem and through glass lenses magnifing the image. |
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| membrane enclosed components of the cell |
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| used to study subcellular structure |
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| The difference between scanning and transmission telescopes |
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Definition
scanning... shoots electrons onto the specimen. (3-D)
Transmission... shoots electrons through the specimen. |
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Definition
| semifluid substance inside the cell |
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| A selective barrier that allows sufficient passage of oxgyen, nutrients and waste. |
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| Where is most of the DNA kept |
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| Use the information from DNA to make proteins |
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| seprates the nucleus from the cytolapsm |
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| located within the nucleus and is the site of ribosomal RNA syntheisis. |
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| Where do ribosomes carry out protein synthisis? |
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Definition
in the cytosol
on the outside or the ER |
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Definition
senthisizes lipids
metabolizes carbohydrates
detoxifing poisons |
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Definition
| membrane factory of the cell |
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| the packaging center of the cell |
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| how are food vacolues formed? |
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| found in plant cells; holds organic compounds and water |
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