BIO 105 1st Edition Lecture 5 Cells Previous Lecture Macromolecules and Atom Lecture Outline I Know the definition of a cell II Know the function of each cell structure Lecture Cell smallest unit of life that can survive on its own or has potential to do so Structure of Cells Plasma Membrane outermost membrane give shape to cell things can pass across this membrane Nucleus Region where DNA is stored cellular control center brain of the cell Cytoplasm everything between plasma membrane and region of DNA Cell Membranes o Phospholipid bilayer has phosphate head and two fatty acid tails Endoplasmic Reticulum manufacturing center for proteins o Rough ER ribosome covered manufactures membranes assembles proteins o Smooth ER no ribosomes build lipids controls toxins in body Golgi Apparatus finishes sorts and ships cell products like the post office Vesicles delivery cart different vesicles depending on its duty Mitochondria powerhouse of the cell ATP producing powerhouse Chloroplasts convert sunlight energy to ATP through photosynthesis only in plants Cell to Cell Junctions Adhering junctions hold down tight junction These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Gap junctions free passage
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