Term
| Cells MUST have what 3 elements? |
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Definition
| Plasma membrane, RNA, DNA |
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Term
| What are the "most specific" type of cells? |
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Definition
| Red blood cells, they eject their nucleus and do not reproduce |
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Term
| What is the glow around a cell called? |
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Definition
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Term
| light microscopy is limited to what resolution? |
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Definition
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Term
| Is the image of a TEM a negative? Why? |
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Definition
| Yes it is, b/c e-s which pass thru indicate thin, low density regions |
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Term
| What are used to stain the very thin specimens looks at by a TEM? |
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Definition
| heavy metals (Pb citrate, Uranyl Acetate) |
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Term
| What are glycolipids and what do they indicate? |
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Definition
| they are sugars on the OUTSIDE of the plasma membrane |
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Term
| What is contained in the DNA and what is contained in the coats of viruses |
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Definition
| 32P is in the DNA, 35S is in the coat |
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Term
| What did the Waring blender experiment prove? |
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Definition
| That DNA, not protein, of a virus enters a bacterial cell and directs the production of new virus particles |
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Term
BASE+SUGAR=???
BASE + SUGAR + PHOSPHATE =???? |
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Definition
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Term
| What makes a nucleotide negatively charged? |
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Definition
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