BIOL 101 Lecture Notes - Lecture 6: Plant Cell, Pectin, Middle Lamella
Document Summary
~1mm, resolving power: ability to distinguish two objects as separate (0. 2 microns) most prokaryotic cells (1-10 microns) most eukaryotic cells (10-100 microns) Plasma membrane cell wall(external) capsule?external) fimbriae similar to sillia (more numerous) Outer - continuous with the er membrane. Nuclear lamina(support structure-intermediate filaments-papier mache, controls the existence of the nucleus) Chromosome(single molecule of dna, in protein) and chromatin(collection of chromosomes. in protein) Nucleolus(darkest area of the nucleus, ribosomal components- released to create ribosomes to create proteins. Ribosomes free(found in the cytoplasm), bound(found in the er) for protein synthesis. Endoplasmic reticulum cisternae(folds of the er), cisternal space(inside the er; er lumen) Smooth er(no ribosomes attached) lipid synthesis - steroids(ovaries and testes) and phospholipids. Detoxification - liver cells, tolerance - adaption. Protein synthesis -that will be secreted by the cell or transmembrane proteins transitional er (vesicle exiting) Modified(modification of sugar attached to the protein), sorted, shipped. Cis-closest to er trans-closest to plasma membrane lysosome lysosomal enzymes.
