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7.2 Cell Vocab
Vocabulary
| Definition | Word |
|---|---|
| A rigid structure that surrounds the cell membrane and provides support to the cell. | Cell Wall |
| Also called plasma membrane, is a phospholipid bi-layer interspersed with proteins that surrounds the contents of the cell... It acts as a barrier between the inside of a cell and the cells's environment. | Cell Membrane |
| IN a eukaryotic cell, a membrane-bound organelle that contains the cell's DNA and that has a role in processes, such as growth, metabolism,& reproduction. | Nucleus |
| A dense granular organelle where a cell begins to make its ribosomes. | Nucleolus |
| The double-layered membrane enclosing the nucleus of a cell. Also called nuclear envelope. | Nucleus Membrane |
| A system of membranes that is found in the cell's cytoplasm and that assists the production. processing, and transport of proteins and in the productions of lipids. | Endoplasmic reticulum (rough & smooth) |
| Stacks of flattened vesicles in eukaryotic cells that are important in the processing and packaging of proteins. Also called the Golgi Body, they are located near the endoplasimc reticulum and through enzymatic activity the Golgi Body modifies proteins... | Golgi Complex |
| and lipids received from the endoplasimc reticulum and repackages and exports them to new locations witin the cell or sends them to the cell's surface. | Golgi Complex |
| Organelles that release energy. Powerhouse of the cell. Each one contains its own genetic material, which is separate and distinct from the genetic material found in the nucleus of the same cell. They are sites for cellular respiration, and makes ATP. | Mitochondria |
| Sacs filled with liquid, some store water or waste. A small cavity in the cytoplasm if a cell, bound by a single membrane and containing water, food, or metabolic waste. In animal cells there are usually several small ones. In plant cells there is one. | Vacuoles (central vacuoles) |
| Large, green, oval-shaped organelles in which photosynthesis takes place. Converts light energy to chemical energy. Is one type of plastid. | Chloroplast |
| Common in animal cells, NOT in plant cells. Are small brown structures involved in digestive activities of the cell. Contin enzymes that break down large food molecules into small ones. Then, pass onto mitochondria where they are "burned" to create energy | Lysosomes |
| Internal framework of a cell composed largely of actin filaments and MICROTUBULES. Microtubules give shape and support to the cell. Cilia and flagella are formed from specialized microtubules | Cytoskeleton |
| Nucleus of the cell contains uncoiled DNA and special proteins, during cell division, it coils and folds to form compact chromosomes | Chromotin |
| Cylindrical body composed of microtubules found only in animal cells. They are found in pairs. During cell division they separate and assist in movement of chromosomes. | Centriole |
| Found in most plant cells, have their own DNA and can replicate themselves independently of nuclear DNA. There are three types, one of which is CHOLOROPLAST. | Plastids |
| Long threadlike strands of protein found in some cell. They are associated with cell movenment, and in larger organisms, with muscle contraction | Microfilaments |
| Tiny hairs made of microtubules controlled by the cell | Cilia |
| whipped, like tail | Flagella |
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miafams7
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