BIO 1000 Lecture Notes - Lecture 5: Endoplasmic Reticulum, Golgi Apparatus, Nuclear Membrane
21 Feb 2017
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Microscopy: scientists use microscopes to visualize cells too small to see with the naked eye. Comparing prokaryotic and eukaryotic cells: basic features of all cells: Ribosomes (make proteins: prokaryotic cells are characterized by having. Dna in an unbound region called the nucleoid. Cytoplasm bound by the plasma membrane: eukaryotic cells are characterized by having. Dna in a nucleus that is bounded by a membranous nuclear envelope. In the nucleus, dna and proteins form genetic material called chromatin: chromatin condenses to form discrete chromosomes, the nucleolus is located within the nucleus and is the site of ribosomal rna (rrna) synthesis. Ribosomes: protein factories: ribosomes are particles made of ribosomal rna and protein, ribosomes carry out protein synthesis in two locations: On the outside of the endoplasmic reticulum or the nuclear envelope (bound ribosomes) The endomembrane system regulates protein traffic and performs metabolic functions in the cell: components of the endomembrane system:
