Transcript Lysosome[1] - APBioLJCDS2010-2011
Lysosomes
By Jerry Hsiung and Alex Mirbod
W h a t i s a Ly s o s o m e ?
Lysosome: A membrane-bound organelle that is found in the cytoplasm of most cells which contains various hydrolytic enzymes and functions in intracellular digestion.
H ow are lys o s omes produced?
Lysosomes in animal cells
Lysosomes in plant cells
Wh at is in the lyso some ?
Acidic PH 4.5 - 5 Enzymes- they can digest: - lipids ex: Lipase - carbohydrates ex: Amylase - proteins ex: Proteases - nucleic acids ex: Nucleases
Functions
1. Breaking up macromolecules 2. Defend the cell 3. A “Suicide Bag”
1. Breaking up macromolecules Dead cells & food…etc Animation: http://www.tvdsb.on.ca/westmin/science/sbi3a1/Cells/lyso.htm
2. Defend the cell & body White blood cell engulfing bacterium
3. A Suicide Bag (Sac)
Structure
0.1 – 1.5µm
Structure
partII
Single-Wall Membrane
A n e a t i n t r o d u c t i o n v i d e o Link: http://highered.mcgraw-hill.com/olc/dl/120067/bio01.swf
Sources
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http://www.biology4kids.com/files/cell_lysosome.html
http://www.daviddarling.info/encyclopedia/L/lysosome.html
http://molecular.magnet.fsu.edu/cells/lysosomes/lysosomes.htm
http://www.tvdsb.on.ca/westmin/science/sbi3a1/Cells/lyso.html
http://farm4.static.flickr.com/3011/2771162044_00d62b0048.jpg?v=0 http://www.rocklin.k12.ca.us/staff/dfix/zenith/handouts/organelles/ly sosome_tem.jpg
http://www.healthvalue.net/files/gaucher.gif
http://images.protopage.com/view/721389/1854gk07so11gu766laupt jlr.jpg
http://highered.mcgraw-hill.com/olc/dl/120067/bio01.swf