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science
| Question | Answer |
|---|---|
| Levels of organization | cell, tissue, organ, organ system, organism |
| Unicellular | has one cell |
| multicellular | multiple cells |
| Nucleus | stores genetic material |
| Cell Membrane | controls movement of substances in and out of the cell |
| Cell wall (plant cells) | provides structure and support |
| chloroplasts (plant cells) | perform photosynthesis |
| Mitochondrion | produces energy for the cell |
| Cytoplasm | gel-like material that holds organelles |
| Cell theory basics | All living things are made of one or more cells. |
| how cells specialize | different shapes, different functions |
| Types of microscopes mentioned and their use | light,electron, fluorescence |
| Evidence that something is living | contains cells, can grow, respond to stimuli, reproduce |
| Examples of unicellular organisms vs multicellular | (plants, animals, fungi) |
| diseases caused by organelle or cell-membrane problems | cystic fibrosis affects cell membrane function |
| differences between cell membrane and cell wall | cell wall provides structor for plants and cell membrane controls movement of substances in and out the cell. |
| Homeostasis and how body systems work together to maintain internal conditions | circulatory and respiratory improve oxygen delivery |
| nervous system coordination | receptors-nerve signals-brain processing- muscle response |
| Examples of body systems that coordinate movement: | nervous, muscular, skeletal |
| Receptors and specific stimuli | eyes-light, ears-sound, nose-smell, skin-temperature/touch |
| How the body responds to cold | nervous system signals muscles to shiver |
| Receptors respond to specific stimuli | eyes-light, ears-sound, nose-smell, skin-temperature/touch |
| Cystic fibers involves promblems moving salt/water across cell membranes | causing breathing issues |
| cell | smallest unit of life |
| tissue | many similar cells working together |
| organ | different tissues working together to do a job |
| organ systems | organs that work together to preform major functions, circulatory systems |
| organisms | a complete living things, animal, plant, fungus, single-celled microbe |
| Unicellular | made of one cell, amoeba |
| Mlticellular | made of many cells, human |
| Homeostasis | keeping internal conditions stable ( like body temperature) |
| Receptor | a cell or structure that detects a specific stimulus lights,sound,smell,temperature |
| Reflex | a fast, automatic response (often via nerve pathways) |
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