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8/22 cell biology
Lecture 1: chapter 1 USDFall2018 Dr. Karen Koster
| Question | Answer |
|---|---|
| Which is larger virus or bacterium? | bacterium |
| What is the size of a virus? | 100nm |
| What is the size of a bacterium? | 1micrometer |
| What is the size of an animal cell? | 10 micrometers |
| What is the size of a plant cell? | 100 micrometers |
| What is the size of a water molecule? | .126 nm |
| What is the average size of a eukaryotic cell? | 20 micrometers in diameter |
| What is the diameter of a DNA helix? | 2nm |
| What is the length of a phospholipid? | 3nm |
| What is the diameter of a microfilament? | 7nm |
| What is the diameter of a ribosome? | 25nm |
| What is the diameter of a mitochondira? | 0.5 micrometers |
| What is the diameter of a cell nucleus? | 6 micrometers |
| What is the average membrane thickness? | 7.5nm |
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