Molecular cell biology 0.0 / 5 ? BiologyMolecular Cell BiologyUniversityNone Created by: wk17278Created on: 29-12-17 01:09 what is the range of cell size? In micrometers 1-100 1 of 28 Cell fractionation... takes cells apart and seperates major organelles 2 of 28 Cell fractionation... allows scientists to determine the functions of organelles 3 of 28 What feature does a Eukaryote have that a prokaryote does not ? DNA in a nucleus bound by membranes 4 of 28 Prokaryotes do not have Nuclueus, Membrane bound organelles, 5 of 28 The Nucleus... contains most of the cells DNA 6 of 28 What is the job of the nuclear envelope enclose the nucleus and seperate it from the cytoplasm 7 of 28 Nuclear membrane is a double membraneof lipid bilayers 8 of 28 Prior to mitosis DNA is stored as Chromatin 9 of 28 What is the role of nuclear lamina Structural anchorage 10 of 28 What is the role of the nucleolus Transcribes RNA 11 of 28 What is the role of the nuclear matrix Scaffold protein 12 of 28 What is the role of the nucleoplasm Act as a viscous medium 13 of 28 Roles of the Nucleus Seperate DNA from cytosol 14 of 28 Roles of the Nucleus Seperate transcription from translation 15 of 28 Roles of the Nucleus Produce mRNA and rRNA 16 of 28 Nuclear pore complex is made up of Nucleoporins 17 of 28 Nuclear Lamina is made up of a network of intermediate filaments 18 of 28 What is the nucleolus Region in nucleus where rRNA is produced 19 of 28 Nuclear matrix is ... a non chromatin structure in the nucleus 20 of 28 Chromatin consists of 50% DNA and 50% proteins 21 of 28 The basic structural unit of chromatin is a nucleosome 22 of 28 Chromatin is double stranded 23 of 28 Each nucleosome consists of histones wrapped around .... times 1.65 24 of 28 Chromatosome consists of nucleosome and... H1 Histone 25 of 28 Nucleosomes fold to produce 30nm fibers 26 of 28 Eurochromatin is.. Loosely packed chromatin 27 of 28 During interphase few regions of chromatin are packed into heterochromatin 28 of 28
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