Ch. 4 Bio Cell Structure
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18 terms
Terms | Definitions |
|---|---|
 golgi body | modiefies, sorts, ships proteins and lipids for export or for insertion into cell membranes. |
| mitochondrion | energy powerhouse, produces many ATP |
| nucleolus | roundish mass of material from which RNA and proteins are made into ribosomal subunits. |
| photosynthesis | light is captured and made into sugar and energy. |
| lyosomes | digests, recycles materials. intracellular digestion. |
| cytoplasm | semifluid between cell's plasma membrane and its nucleus/nucleoid |
| chromatin | name for all the chromosomal DNA and proteins as a whole inside a nucleus. Chromosomes carry DNA and proteins that "package and manage" DNA. |
| cell wall | protects, structurally supports the cell |
| organelles | structures that carry otu a specialized metabolic function inside a cell |
| central vacuole | in many plant cells, a fuild filled organelle that stores amino acids, sugars and some wastes. |
| nucleus | keeps DNA and its transcription into RNA away from potentially damaging reactions in cytoplasm |
| chloroplast | speacializes in photosynthesis |
| plasma membrane | selectively controls the kinds and amounts of substances moving into and out of the cell, helps maintain cytplasmic volume and composition |
| rough ER | modifies new polypeptide chains |
| smooth ER | many roles, makes lipids, degrades fats, inactivates toxins |
| eukaryotic cell | has a nucleus |
| prokaryotic | has no nucleus membrane |
| lipid bilayer | double layer of lipids |
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