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Bio Sections
Sections 2.1& 3.1
| Question | Answer |
|---|---|
| How was the cell theory formed? | Through the discoveries of Robert Hooke, Anton van Leeuwenhoek, Matthias Schleiden, Theodore Schwann, and Rudolf Virchow. |
| Why are cells called cells? | Hooke thought that cells looked like cells in monasteries. |
| Who discovered the cell theory? | Multiple scientists over the years. |
| What is the cell theory? | One of the first unifying concepts in Biology |
| What does the cell theory state? | All cells come from cells All living things are made of cells Cells are the most basic unit of life |
| What are atoms? | Most basic unit of matter |
| What are elements? | 1 type of atom; cannot be broken down any further |
| How do ions form? | Atoms that gain/lose electrons |
| What is a molecule? | 2+ atoms held together by a covalent bond |
| How is a covalent bond formed? | atoms share a pair of electrons |
| How does an ionic bond form? | forms through the electrical force between oppositely charged ions |
| What is a compound? | substance made of atoms of different elements bonded together in a certain ratio |
| What is the difference between eukaryotic and prokaryotic cells? | eukaryotic cells have membrane-bound organelles and a nucleus prokaryotic cells don't have membrane-bound organelles or a nucleus |
| What are organelles? | cell parts |
| What are atoms made up of? | protons, neutrons, and electrons |