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Description
Flashcards by juliaevaelin, updated more than 1 year ago
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Created by juliaevaelin
almost 10 years ago
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| Question | Answer |
| 2.1.1 Outline the cell theory | - All cells come from pre-existing cells - Cells are the smallest unit of life - All living things are composed of cells |
| 2.1.2 Discuss evidence for the cell theory | Louis Pasteur did experiments on chicken broth with one container open and one closed, the open grew bacteria -> cells cannot be created from a vacuum. |
| 2.1.3 State the functions all unicellular organisms must carry out. | Unicellular organisms carry out the functions of life: - metabolism, growth, reproduction, response, homeostasis, nutrition |
| 2.1.4 Compare relative sizes of molecules, cell membrane thickness, viruses, bacteria, organelles and cells using the appropriate SI-unit. | From largest to smallest: cells (>100 microm) organelles (>10 microm) bacteria (>1microm) viruses (>100 nm) membrane thickness (>10 nm) molecules (1nm) |
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