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Science Chapter 3
Diversity of cells 6th Grade
| Question | Answer |
|---|---|
| Ribosome | Tiny,round organelles made of protein and other material. |
| Cytoplasm | The fluid inside a cell. |
| What's the reason why most cells are limited to a very small size? | Surface area-to-volume ratio. (SAV) |
| Cell Membrane | A protective layer that covers the cell's surface and acts as a barrier. |
| Organelle | Small bodies in a cells cytoplasm that are specialized to perform specific functions. |
| Nucleus | In a eukaryotic cell, an organelle that contains the cell's DNA and that has a role in growth, metabolism, and reproduction. |
| Prokaryote | An organism that consists of a single cell that does not have a nucleus or membrane-bound organelles. |
| Bacteria | Prokaryotes that are the smallest cells and that have ribosomes. |
| Archaea | Prokaryotes that include extremophiles, organisms that live in extreme conditions. |
| Eukaryote | An organism made up of cells that have a nucleus enclosed by a membrane as well as membrane-bound organelles. |
| Cell | The smallest structure that can perform all the processes necessary for life. |
| Who was the first person to describe cells? | Robert Hooke |
| Who was the person who discovered single-celled organisms including bacteria? | Anton Van Leeuwenhoek |
| Who was the person who concluded that all plant parts were made of cells? | Schleiden |
| Who as the person that concluded that all animal tissues were made of cells? | Schwann |
| Who was the person that concluded all cells came from existing cells? | Virchow |
| What are the three parts of the Cell Theory? | All organisms are made of one or more cells The cell is the basic unit of all living things All Cells come from existing cells |
| What parts do all cells have? | A cell membrane, organelles, cytoplasm, and DNA. |
| What are the two basic types of cells? | A prokaryote cell and a eukaryote cell. |
| Does a prokaryote have a nucleus? | No |
| Does a eukaryote have a nucleus? | Yes |
| What's the Curly stuff inside the bacterium? | DNA |
| What's the tail? Does it help the bacterium move? | It's the flagellum. Yes, It does help it move. |
| Is the cell membrane more inside the bacterium then the cell wall or no? | Yes, the cell membrane is more inside the bacterium then the cell wall. |
Created by:
chillingoutlaxing101
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