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cellssd10
| Question | Answer |
|---|---|
| Cells | smallest unit of living things |
| Element | basic simple materials that cannot be broken down in simpler substances |
| Atom | the smallest amount of any element |
| Cell theory | is made up of three main ideas |
| compound light microscope | use a series of lenses to magnify objects in steps. |
| electron microscope | uses a beam of electrons instead of light to magnify structures up to 500 000 times their actual size, allowing scientists to see structures within a cell |
| eukaryote | Most of the multicellular organisms we know are made up of eukaryotic cells |
| nucleus | the central membrane- bound organelle that manages or con1trols cellular functions. |
| organelle | observed that all cells contain small, specialized structures. Each organelle has a specific function in the cell. |
| prokaryote | Most unicellular organisms, such as bacteria, do not have membrane- bound organelles |
| cell wall | is a fairly rigid structure located outside the plasma membrane that provides additional support and protection. |
| chlorophyll | traps light energy and gives leaves and stems their green color. |
| chloroplast | are cell organelles that capture light energy and convert it to chemical energy. |
| chromatin | strands of the genetic material, DNA |
| cilia | are short, numerous projections that look like hairs |
| cytoplasm | lear, gelatinous fluid inside a cell |
| cytoskeleton | cells have a support structure within the cytoplasm |
| endoplasmic reticulum | is the site of cellular chemical reactions |
| flagella | longer projections that move with a whip |
| Golgi apparatus | a flattened stack of tubular membranes that modifies the proteins. |
| lysosome | are organelles that contain digestive enzymes. |
| microfilament | are smaller, solid protein fibers |
| microtubule | are thin, hollow cylinders made of protein |
| mitochondria | are membrane |
| nucleolus | Within the nucleus is a prominent organelle |
| plastid | The chloroplast belongs to a group of plant organelles called plastids, which are used for storage. |
| ribosome | the sites where the cell produces proteins according to the directions of DNA |
| vacuolea | sac used to store food, enzymes, and other materials needed by a cell |
Created by:
suzannahdavis
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