Cell Structures and Functions 0.0 / 5 ? BiologyCell biologyUniversitySQA Created by: amykaneCreated on: 05-12-17 03:24 What is the role of the nucleus? Where genetic material is organised and expressed. Controls cell activities. 1 of 16 What is the role of the nucleolus? Site for ribosome subunit assembly 2 of 16 What is a chromatin? a complex of protein and DNA 3 of 16 What is the role of the nuclear envelope? Double membrane that encloses nucleus 4 of 16 What is the role of the nuclear pore? passageway for molecules in and out of nucleus 5 of 16 What is the role of the lysosome? Where macromolecules are degraded 6 of 16 What is the role of the ribosome? Site of polypeptide synthesis. 7 of 16 What is the role of the plasma membrane? Controls movement of substances in and out of cell. Site of cell signalling. 8 of 16 What is the role of the cytosol? Site of many metabolic pathways 9 of 16 What is the role of the golgi apparatus? Site of modification, sorting and secretion of lipids and proteins. 10 of 16 What is the role of the peroxisome? Where hydrogen peroxide and other harmful substances are broken down. 11 of 16 What is the role of the cytoskeleton? protein filaments that provide shape and aid movement 12 of 16 What is the role of the mitochondria? Site of ATP synthesis 13 of 16 What is the role of the smooth ER? site of detoxification and lipid synthesis 14 of 16 What is the role of the rough ER? Site of protein sorting and secretion. 15 of 16 What is the role of the centrosome? site where microtubules grow and centrioles are found 16 of 16
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