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!

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Presentation transcript:

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’ ProkaryoticEukaryotic Types of organisms Bacteria, algaeAnimals, plants, fungi NucleusNo distinct nucleusNucleus surrounded by nuclear membrane Cell Wall Always have a cell wall Only in plants and fungi OrganellesVery fewMany

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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.

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.