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Michele Zaldana
Anatomy Weeks 1-5
| Question | Answer |
|---|---|
| plasma membrane | Serves as the boundary of the cell, maintains its integrity; protein molecules embedded in plasma membrane ; serve as markers that identify cells of each individual, as receptor molecules for certain hormones and other molecules, and as transport mechanis |
| endoplasmic reticulum | Ribosomes attached to rough ER synthesize polypeptides that enter rough ER for folding and finishing, then move on to smooth ER |
| ribosomes | Site of protein synthesis; a cell’s “protein factories” |
| Proteasomes | Destroys misfolded or otherwise abnormal proteins manufactured by the cell; a “quality control” mechanism for protein synthesi |
| centrosomes | Acts as the microtubule-organizing center (MTOC) of the cell; centrioles assist in forming and organizing microtubules |
| Microvilli | Tiny, fingerlike extensions that increase a cell’s absorptive surface area |
| Nucleus | Houses the genetic code, which in turn dictates protein synthesis, thereby playing an essential role in other cell activities, namely, cell transport, metabolism, and growth |
| Mitochondria | Catabolism; adenosine triphosphate (ATP) synthesis; a cell’s “power plants” |
| Lysosomes | Digestive enzymes break down defective cell parts (autophagy) and ingested particles; a cell’s “digestive system”; some lysosomes involved in membrane repair or secretion |
| Peroxisomes | Enzymes detoxify harmful substances in the cell |
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zaldanamichi
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