4059684
Description
Flashcards by Cooper Kane, updated more than 1 year ago
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Created by Cooper Kane
about 9 years ago
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| Question | Answer |
| What is a cell? | A cell is the smallest unit that can carry on all the processes of life |
| What scientist is credited with coining the term "cell"? | Robert Hooke |
| What was the scientist (who came up with the name "cell") looking at when he came up with this term? | Observed dead plant (cork) cells and carrot, tree, and fern cells |
| Who was the first scientist to observe living cells? | Anton van Leeuwenhoek |
| Differentiate between a prokaryotic and a eukaryotic cell | Prokaryotic cells don't have a nucleus but a eukaryotic cell does |
| What three scientists were credited with developing the cell theory? | Matthias Schleiden, Theodor Schwann, and Rudolph Virchow |
| What are the three parts to the cell theory? | 1. All living things are compose of one or more cells 2. Cells are organisms' basic unit of structure and function 3. Cells come only from existing cells |
| What are organelles? | They are cell components that perform specific functions in the cell |
| What are the three main components of a typical eukaryotic cell? | 1. Cell membrane 2. The cytoplasm 3. The nucleus |
| Why is the cell membrane called a selectively permeable membrane? | It allows some materials to pass through but not others |
| Why is the cell membrane called a fluid mosaic model? | Lipid molecules forming the membrane are fluid which allows the proteins to move about and change the pattern of the membrane |
| Draw and label the lipid bi-layer of the cell membrane | |
| What is the cytoplasm composed of? | Contains water, salts, and organic molecules |
| Differentiate between smooth endoplasmic reticulum and rough endoplasmic reticulum | Rough endoplasmic reticulum has ribosomes attached to it but smooth endoplasmic reticulum doesn't |
| Differentiate between cilia and flagella. Give at least two differences | Cilia are short, hair-like extensions that occur in large numbers; typically moves in a rhythmical fashion Flagella are whip-like, longer than cilia, occurring singly or in pairs |
| What is the function of the nucleus? | Directs the activities of the cell |
| What is the function of the cytoplasm? | It contains all organelles and cell parts |
| What is the function of the cell membrane? | Gives shape and flexibility to the cell |
| What is the function of the ribosomes? | It's the site where proteins are made-protein synthesis |
| What is the function of the endoplasmic reticulum? | A path along which molecules move from one part of the cell to another |
| What is the function of the Golgi apparatus? | The processing, packaging, and secretory organelle |
| What is the function of the mitochondria? | Cellular respiration, powerhouse of the cell |
| What is the function of lysosomes? | Play a role in early development |
| What is the function of micro-tubules/micro-filaments? | Help shape and support cells; form the cytoskeleton |
| What is the function of the cilia/flagella? | Function in movement |
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