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3.1.3 Ultrastructure of a Cell L.O: To label the organelles found in a eukaryotic cell To describe the function of each organelle Starter: Spot the Difference! In pairs, look for the differences between the two cells below: Prokaryotic v.s. Eukaryotic Cell ‘Before nucleus’ ‘after/good nucleus’ Prokaryotic Types of organisms Nucleus Cell Wall Organelles Bacteria, algae Eukaryotic Animals, plants, fungi No distinct nucleus Nucleus surrounded by nuclear membrane Always have a cell Only in plants and wall fungi Very few Many Cell Organelles http://highered.mcgrawhill.com/sites/0078617022/student_view0/br ainpop_movies.html# Cell Structure Poster • Collect a piece of coloured paper and 7 different coloured pens • Draw a circle taking up nearly all of the page Nucleus: contains chromatin, the condensed form of chromosomes. Nuclear pores allow substances to move in and out. Nucleolus makes ribosomes. Nucleus: contains chromatin, the condensed form of chromosomes. Nuclear pores allow substances to move in and out. Nucleolus makes ribosomes. Ribosomes: either found in cytoplasm or attached to rough E.R. These are the site of protein synthesis. Nucleus: contains chromatin, the condensed form of chromosomes. Nuclear pores allow substances to move in and out. Nucleolus makes ribosomes. Ribosomes: either found in cytoplasm or attached to rough E.R. These are the site of protein synthesis. Endoplasmic Reticulum: (2 types) Rough E.R. has ribosomes attached and provides large surface area for making proteins. Smooth E.R. Creates and stores lipids and carbohydrates. Golgi Apparatus: Processes and modifies proteins and lipids made by the E.R. These are packaged into vesicles and move out of the cell. Also makes lysosomes. Golgi Apparatus: Processes and modifies proteins and lipids made by the E.R. These are packaged into vesicles and move out of the cell. Also makes lysosomes. Lysosomes: vesicles containing enzymes Golgi Apparatus: Processes and modifies proteins and lipids made by the E.R. These are packaged into vesicles and move out of the cell. Also makes lysosomes. Lysosomes: vesicles containing enzymes Mitochondria: site of aerobic respiration. Double membrane folded into cristae to increase surface area, inner matrix contains enzymes for respiration. Golgi Apparatus: Processes and modifies proteins and lipids. These are packaged into vesicles and move out of the cell. Also makes lysosomes. Lysosomes: vesicles containing enzymes Mitochondria: site of aerobic respiration. Double membrane folded into cristae to increase surface area, inner matrix contains enzymes for respiration. Plasma membrane: made of lipids and carbohydrates, it regulates the movement of substances in and out of the cell. Specialised Cells Extension: Think of examples of cells with lots of: a) Mitochondria b) Endoplasmic reticulum c) Lysosomes Bingo! Draw a 3 x 3 grid and write in 9 of the following words: Lysosome, vesicle, prokaryotic, eukaryotic, endoplasmic reticulum, mitochondria, pores, golgi apparatus, ribosomes, chromatin, plasma membrane, cristae, enzymes, matrix, nucleolus.