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Science Unit A Cells
| Question | Answer |
|---|---|
| Cell Theory (3 Key Ideas) | All organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. All cells are made from pre-existing cells. |
| Characteristics of Living Things (MRGREEN) | M ovement: R eproduction: G rowth: R esponse: E xchange of gases: E xcretion: N utrition: |
| steps on how to use a microscope | |
| 1 | Place the smallest objective lens over the hole in the stage. |
| 2 | Turn the focusing knob to create a small gap between the objective lens and stage. |
| 3 | Clip a microscope slide onto the stage. |
| 4 | Adjust the amount of light passing through the specimen by adjusting the mirror. |
| 5 | Look down the eyepiece lens. |
| 6 | Turn the focusing knob to see the specimen clearly. |
| 7 | Use the fine focusing knob to see the best image. |
| 8 | To see a bigger image switch to the next objective lens |
| 9 | Use the focusing knob to get the image back into focus. |
| Nucleus | it is the control centre and stores DNA. |
| Cell Membrane | protect the cell from its surroundings and allows material to pass in and out. |
| Endoplasmic Reticulum | creates and folds proteins also has rough/smooth |
| Chloroplast | to conduct photosynthesis and contains chlorophyll. |
| Cytoplasm | space between cell me,brand and nucleus |
| Golgi Complex | modifies, sorts, and packages materials from the endoplasmic reticulum. |
| Mitochondria | to produce the energy currency of the cell by breaking down food (sugar) |
| RIbosome | cell structure to make protein. |
| cell wall | used for structure on a plant and protection and is made of cellulose. |
| Enzymes | breaks down food/lactase |
| “What are the 4 words that end in ose” | Glucose Fructose Lactose Cellulose |
| Key points Plant and Animal Cell Differences | Plant cells are bigger than animal cells. Plants have cell walls which are a layer of carbohydrates which animal cells don’t have. Plants are photosynthetic. |
| Photosynthesis and Respiration Equations | 6(H2O)+6(CO2)TAKES IN SUNLIGHT 6(O2)+ C6H12O6 C6H12O6+6(O2)TAKES OUT SUNLIGHT 6(CO2)+6(H2O) |
| Photosynthesis: | To convert light energy into chemical energy that can later be released to fuel the organisms'. |
| What part of the cell is known as the GATEKEEPER? | The cell membrane acts like the gatekeeper; it controls the movement of materials in and out of the cell. |
| What the cell wall is the made up of? | Cell walls made of cellulose are only found around plant cells and a few other organisms. |
| Why did Mr. Hua teach you about SWAMP THING? | Because it is related to photosynthesis since Swamp Thing can make his own food. |
| Diffusion: | A process that causes molecules to move in and out of a cell. |
| Osmosis: | A process which the molecules of a water pass through a membrane. |
| Animal Cell Labeling: | 1. ribosomes 2.endoplasmic reticulum 3. nucleus 4. lysosomes 5. cell membrane 6. mitochondria 7. cytoplasm 8. Golgi body 9. vacuole |
| Plant Cell Labeling: | 1.nucleus 2.ribosomes 3. mitochondrion 4. chloroplasts 5. Cell membrane 6. cytoplasm 7.cell wall 8. vacuole 9. Golgi body 10. Endoplasmic reticulum |
| Matching the Cell Definition: | cell membrane cytoplasm nucleus endoplasmic reticulum Golgi apparatus ribosome mitochondria chloroplast vacuole cell wall |
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