BIOL10004 Lecture Notes - Lecture 3: Chlorophyll, Plant, Fucoxanthin
30 Jul 2018
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Main difference that distinguishes a eukaryotic cell from a prokaryotic cell there is a division of labour divided in different parts/compartments (organelles) in a eukaryotic cell. Surrounded by a double membrane: the nuclear envelope reticulum. Allow movement certain molecules b/w cytoplasm & nucleoplasm. Outer membrane nuclear envelope continuous with endoplasmic. Nuclear pores: composed of 30 diff proteins (diameter of channel- Inner membrane continuous with outer membrane at nuclear pores: the nls(cid:495)s bind to cytosolic nuclear import receptors facilitate, proteins (imported in) have short amino acid sequence that form a nuclear localisation signal. 50nm: large molecules inside nucleus (mrna/ribosomal subunits) have nuclear export signals bind to nuclear export receptors facilitate active export. Contain 1/several nucleoli: darkly staining regions: high concentration of. Form when cell divides and chromatin bunch up & thicken visible by light microscope. Dna is would around histones twice string. Allows dna to twist helix chromatin strand. Forms nucleosomes resembles beads on a.
