outline 1+2

outline 1+2 - ii. Rough ER (RER) a) ribosomes attached to...

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Tejas Patel Lecture 1-2 Outline 9/14/11 I. Biological Classification A. Evolutionary Relationships i. Domain → Kingdom → Phylum → Class → Order → Family → Genus → Species B. Categories of Cells i. Prokaryotes a) no nucleus or membrane-bound organelles b) have nucleoid and plasma membrane ii. Eukaryotes a) have membrane-bound nucleus and membrane-bound organelles II. Internal Membrane Space (Endomembrane System) A. Membrane i. lipid bilayer ii. form closed compartments iii. separate internal environment from external environment III. Plasma Membrane A. encloses cell B. selectively permeable C. cell membrane ≠ cell wall IV. Organelles A. nucleus i. nuclear envelope a) separates nucleoplasm from cytoplasm b) fuse at intervals to form nuclear pores B. ribosomes i. leave nucleus through nuclear pores; site of protein synthesis C. endoplasmic reticulum (ER) i. ER lumen; ER membrane connected to outer nuclear membrane
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Unformatted text preview: ii. Rough ER (RER) a) ribosomes attached to outer surface b) proteins produced in ribosomes travel through a pore into ER lumen iii. Smooth ER (SER) a) no ribosomes attached to outer surface b) lipid systems + metabolism D. golgi complex i. stacks of membranous sacks (cisternae) E. lysosomes i. sacs of powerful hydrolytic enzymes ii. human diseases: rheumatoid arthritis, Tay-Sachs F. vacuoles i. membrane-bound, fluid-filled sacs V. Energy Converting Organelles A. membrane-bound B. convert chemical and light energy into a usable form ATP C. 2 types: mitochondria (animal cells) and chloroplasts (plant cells) VI. Cytoskeleton A. function i. holds organelles in place ii. maintain and change cell shape iii. motility Tejas Patel Lecture 1-2 Outline 9/14/11 B. 3 types of filaments/fibers: microfilaments, intermediate filaments, microtubules (actin)...
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outline 1+2 - ii. Rough ER (RER) a) ribosomes attached to...

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