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synthesizes lipids
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produces secretory proteins
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Bio chaptah 7
Inside The Cell
| Question | Answer |
|---|---|
| synthesizes lipids | Smooth ER |
| produces secretory proteins | Rough ER |
| modifies and sorts proteins | Golgi Apparatus |
| Defines cell shape | cytoskeleton |
| Digests proteins | Lysosome |
| Generates ATP | Mitochondria |
| assembles ribosomes | nucleus |
| nucleoid, lysosome, mitochrondria, plasma membrane,nucleolus, flagella, ribosomes--> categorize into pro, euka, and both | pro- nucleoid euka- mitochondria, lysosome, nucleolus both- plasma membrane, flagella, ribosomes |
| In eukaryotic flagella, the fibres that slide past one another due to the activity of dynein proteins are _______________. | microtubules |
| Many cell organelles, most notably the nucleus, are anchored by __________ which are assembled from a diverse class of proteins. | Intermediate filaments |
| Centrosomes are sites where proteins assembles dimers into ______________. | microtubules |
| The extension of pseudopodia in amoeba is due to the regulated assembly and destruction of _____________. | microfilaments |
| The only cytoskeletal fibres not associated with intercellular movement of the whole cell locomotion are the _________________. | Intermediate filaments |
| During muscle contractions myosin motor proteins move across tracks of ___________________. | microfilaments |
| -Roles of Endomembrane System- *Calcium ion storage *poison detoxification *cisternal maturation *lipid synthesis *protein synthesis *protein modification and sorting *macromolecule digestion *autophagy -->lysosome, smooth/rough ER, or golgi? | lysosome- macromolecule digestion,autophagy smooth ER- lipid synthesis, Ca+ storage, poison detoxification rough ER- protein synthesis Golgi- protein modification and sorting, cisternal maturation |
| proteins synthesized by free ribosomes? (cytosol) | DNA polymerase, ribosomal protein, actin |
| proteins synthesized by bound ribosomes? (endomembrane system) | ER protein, lysosomal protein, insulin |
| 5 steps of the pathway of secretory proteins from synthesis to secretion in the endomembrane system? | endoplasmic reticulum, cis Golgi cisternae, medial Golgi cisternae, trans Golgi cisternae, plasma membrane |
| Cells are exposed to a high concentration of a radioactively labeled amino acid for a short period to tag proteins that are being synthesized | the “pulse” phase The higher the number, the greater the radioactivity-- most likely function of cells |
| Any unincorporated radioactively labeled amino acids are washed away and large amounts of the same, but unlabeled, amino acid are added. | the “chase” phase |
| exocyto, endocyto, BOTH *require cellular energy *-> surface area of p mem *move substance never physically cross p mem *<- surface area of p mem *form vesicle from inward fold of p mem *require fusion of vesicle with p mem *secrete huge moles out | exocyto* -> surface area of p mem, require fusion of vesicale with p mem, secrete huge moles out of cell endocyto* <- surface of p mem, form vesicle from inward fold of p mem both* require cellular energy, move substane never physcially cross p mem |
Created by:
jsanjuan
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