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Related Flashcards
Cards In This Set
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What do all cells contain?
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Plasma membrane, cytoplasm, ribosomes,dissolved enzymes, water, DNA
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What do prokaryotes contain?
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Nucleoid and possibly flagella, pili, cell wall, outer membrane
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Four kingdoms of eukaryotic cells
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Protist, plantac, fungi, animalia
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What is the benefit of compartmentilization in cells?
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Makes cell more organized and increases surface area to volume ratio
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What is the function of the RER
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To synthesize proteins
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How does cotranslational transport work?
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The signal sequence stops translation of protein and attaches it to smooth ribosomal protein to be transported to the ER to continue translation
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Describe the 2 types of transport that takes place in the Golgi
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Vesicular transport- cargo moves by vesicles from cis to trans. resident enzymes are stationary cisternal maturation- cargo is stationary while enzymes are brought by vesicles from trans to cis
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What determines where a protein will be sent
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Carbohydrate tag
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What is a lysosome
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An acidic molecule that contains digestive enzymes. acidic due to H+ pump
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Peroxizome
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Break down lipid and detoxification
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T/F Mitochondria and chloroplast contain their own DNA
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T
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What is the endosymbiosis theroy
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Eukaryotes took up U bacteria that transformed into a mitochondria. They shared DNA and chloroplast as well
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What 3 microfillaments compose the cytoskeleton
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Microfilaments, intermediate filaments, microtubules
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Protein fibers structure and function
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Micro filaments- double helix, muscle movements (chloroplast streaming)intermediate- thick cables, resist tensionmicrotubules- hollow tubes, resist compression
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How do microtubule motors work in flagella
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Dynein moves towards - end (toward cell body)kinesin moves towards + end (outside of cell)
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