Structure of an epithelial cell 0.0 / 5 ? BiologyPractical applications of biologyASAQA Created by: Hannah CarlingCreated on: 21-12-13 16:13 What is the structure of a nucleus? Nuclear envelope, nuclear pores, nucleoplasm, chromatin 1 of 15 What is the function of the nucleus? It acts as a control centre, retains the cells genetic material and manfactures RNA 2 of 15 What is the structure of a mitochondria? Double membrane, Cristae and Matrix 3 of 15 What is the function of a mitochondria? They produce ATP energy and take part in protein synthesis and respiration 4 of 15 What are the two types of Endoplasmic Reticulum? RER which contains ribosomes on its surface and SER which lacks ribosomes 5 of 15 What are the functions of RER? They provide a large surface area for protein synthesis and provide a pathway for transport of materials 6 of 15 What are the functions of SER? They synthesise, store and transport lipids and carbohydrates 7 of 15 What is the structure of Golgi Apparatus? They are stacks of membranes and flattened sacs with vesicles 8 of 15 What is the role of the vesicles in Golgi? Once proteins are modified, they are transported via the vesicles which are pinched off at the ends, to fuse with the membrane 9 of 15 What is the function of Golgi? They produce glycoprotein, produce secretory enzymes, transport, store and modify lipids and produce lysosomes 10 of 15 What is the structure of a lysosome? They are made of enzymes and formed through the vesicles in Golgi 11 of 15 What is the function of a lysosome? They break down materials, release enzymes to destroy cells, digest worn out organelles and break down dead cells 12 of 15 What process are lysosomes important too? Phagocytosis 13 of 15 What are the two types of Ribosomes? 80S (eukaryotic) and 70S (prokaryotic) 14 of 15 What is the function of Ribosomes? They take part in protein synthesis 15 of 15
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