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Reflections on 9/11 and Cell Biology Processes

Remembering where you were on 9/11 and exploring the intricate processes of protein synthesis in cells. From DNA to protein secretion, delve into the inner workings of cells while reflecting on the impact of terrorist attacks. How did you feel then and now?

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Reflections on 9/11 and Cell Biology Processes

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  1. Catalyst: “Remembering 9/11” • Where were you when you found out about the terrorist attacks on the world trade center? How did you feel? Have your feelings about the incident changed?

  2. Cell Parts: Protein Synthesis • DNA (Deoxyribonucleic Acid): • “Master blueprint”, genetic code • Prokaryotic: DNA in nucleoid • Eukaryotic: DNA in nucleus

  3. Cell Parts: Protein Secretion • Vesicles containing proteins are not transported across the cell membrane by previously learned mechanisms.

  4. Cell Parts: Protein Secretion • ncbn Exocytosis: the process of exporting materials out of the cell via a vesicle “Outside” Endocytosis: the process of importing materials into the cell via a vesicle “Inside” Vesicle: a small molecule within a cell enclosed by a lipid bilayer Image Source: http://karimedalla.files.wordpress.com/2012/09/i60_0322.jpg

  5. Cell Parts: Protein Synthesis Nuclear Pore Nucleus • Transcription & Translation: DNA instructs the synthesis of a protein. • Nucleolus synthesizes ribosome • Ribosome attaches to rough E.R. • RNA copies DNA (Transcription) • RNA travels through nuclear pore to ribosome • Ribosome decodes RNA into a protein (Translation) • Protein travels through rough E.R. to fold into a complex 3D shape • Protein travels to Golgi where it is packaged into a vesicle • Vesicle travels to plasma membrane & is secreted through exocytosis DNA Nucleolus RNA Rough E.R. Ribosome Golgi Body Plasma Membrane Image Source: http://partsofthecell.blogspot.com/2012/09/golgi-apparatus.html

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