Chapter all: Compartmentalizing the Cell

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1 Dec 2016
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Eukaryotic cells have organelles, specialized compartments spatially defined by the membranes surrounding them in the cytoplasm. Each organelle is further defined by sets of specific proteins, and other molecules that generate its distinctive structure and functions. Organelles have also a characteristic morphology and location. All eukaryote cells have the same basic set of membrane-enclosed. Nucleus: it carries the genome, and it is the major site of dna and. Cytosol: it is a site of protein synthesis and degradation, and of intermediary metabolism. It directs proteins and lipids to the golgi apparatus. Rough er refers to er regions with attached ribosomes, involved in protein synthesis; ribosomes are not- membrane enclosed organelles. Er regions with no ribosomes make up the smooth er. Golgi apparatus: it usually consists of tank-like compartments, the. It sends off lipids and proteins to other target compartments. Mitochondria and plastids such as chloroplasts (only in plants): they synthesize atp"s to drive reactions requiring surplus energy.

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