What is a lysosome ? ( Bio project) 10 marks
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Lysosomes are important organelles inside all animal cells. They are in the cytoplasm. They have important functions like, digestive metabolism, secretion , repair of the plasma membrane when it is ruptured or damaged, killing or digesting unwanted pathogens or used up obsolete parts inside a cell or outside a cell.
They are involved in the killing of bacteria or foreign organelles. They are involved in communication or cell signalling. As they are important in metabolism, lysosomes are essential for animals to generate internal energy.
For the Bio project, you could draw (include) a picture of animal cell with lysosomes - a 3-d model in color. Then list out the important functions of the lysosomes. For each function we could show a diagram depicting how it is done.
They contain a lot of enzymes. Thus a list or picture of important enzymes could be shown too. They contain acidic matter. Some of the genetically inherited disorders are due to lysosomes. Lysosomes are acidic and are of 0.1 to 1 micrometer size. They have a pH of 4.5. They inject protons across the plasma membrane to maintain acidic potential.
They are discovered by scientist Christian De Duve in 1955 in Belgium. He was awarded the Nobel prize in 1974 in Medicine and Physiology for this discovery.
They are involved in the killing of bacteria or foreign organelles. They are involved in communication or cell signalling. As they are important in metabolism, lysosomes are essential for animals to generate internal energy.
For the Bio project, you could draw (include) a picture of animal cell with lysosomes - a 3-d model in color. Then list out the important functions of the lysosomes. For each function we could show a diagram depicting how it is done.
They contain a lot of enzymes. Thus a list or picture of important enzymes could be shown too. They contain acidic matter. Some of the genetically inherited disorders are due to lysosomes. Lysosomes are acidic and are of 0.1 to 1 micrometer size. They have a pH of 4.5. They inject protons across the plasma membrane to maintain acidic potential.
They are discovered by scientist Christian De Duve in 1955 in Belgium. He was awarded the Nobel prize in 1974 in Medicine and Physiology for this discovery.
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