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By: Andrew Dawson and Kylie Haggard
Small particles in the cell that are the site of protein synthesis
Found in both prokaryotic and eukaryotic cells
Located in the cytoplasm, either freely or attached to the endoplasmic reticulum (ER)
Unlike other organelles, they are not membrane enclosed compartments
Found in all forms of life, meaning they share common ancestry
Produced in the nucleolus
rRNA is transcribed from rDNA and then bound to ribosomal proteins to forn subunits
Contain 2 subunits, each contain rRNA and numerous protiens
2 subunits come together for the translation of mRNA, during protein synthesis
Creation of proteins by cells that use DNA, RNA, and various enzymes
Ribosome translates the nucleotide sequence of a messenger RNA molecule into a polypeptide chain
Membrane-enclosed organelles originating from the Golgi Apparatus
Surrounded by a single membrane layer
Contain hydrolytic or digestive enzymes
Apoptosis
Intracellular Digestion
Lysosomes are important in the progression of apoptosis which is the destruction of cells. Lysosomes contain an enzyme capable of degrading most of the components of a cell called proteases
breakdown of large molecules
Detoxification
Recycling
lysosomes have single membranes contain digestive enzymes that break down toxic materials
carries out waste disposal and recycling by taking in old cellular components and unneeded large molecules and digests them with enzymes and acids