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2.2 Building blocks of life
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Created by Rahma Salih Abelgadir |
| Who created the first microscope? | The first microscope created was by Zacharias Janssen (1585-1632) who was a Dutch reading glasses maker. |
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What did Robert Hooke see though that microscope?
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Robert Hooke saw thin slices of cork containing little boxes. He had discovered the basic building blocks of life. |
| What did Leeuwenhoek first observe and describe? | He was the first person to observe and describe microscopic living things. Also he was first person to observe and describe human red blood cells and bacteria. |
| What the three cell theories? | The three cell theories are 1)Plant cells were not empty boxes, 2)Cells are the basic building blocks of life, 3)Animals are made of cells. |
| Who discovered the first cell theory? | A Scottish biologist named Robert Brown (1773-1858). |
| Who discovered the second cell theory? | A German scientist named Matthias Schleiden (1804-1881) |
| Who discovered the third cell theory? |
A friend of Schleiden named Theodor Schwann (1810-1882)
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| What are unicellular organisms? | Unicellular organisms are living things that have only one cell e.g. bacteria. |
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What are organelles?
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Organelles are tiny organs found in a cell. |
| Give a unicellular fungi. | Yeast is one unicellular fungi. |
| Define mitosis? | Mitosis is a cell division that produces two identical cells. |
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Define cell membrane
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Cell membrane is the 'skin' that hold a single cell together and it controls what comes in and out the cell. |
| Define cell | Cells are the basic foundation of life or building blocks of life. |
| What is a fungal cell? | A fungal cell is organisms which can be single celled or multiple cells. |
| Which protists are harmful to living organisms. | Giardia Lamblia |
| Identify 4 | Mitochondria |
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