exam2studygruide

exam2studygruide - Cells: 1. Similarities between...

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Cells: 1. Similarities between prokaryotic and eukaryotic cells a. Cytoplasm or cytosol b. Plasma membrane c. Ribosomes d. Chromosomes 2. Differences between prokaryotic and eukaryotic cells a. Eukaryotes have a nucleus b. Eukaryotes have membrane-bound organelles c. Prokaryotes do not have plasma membranes d. Size-Eukaryotes are bigger 3. Primary function of the Nucleus a. Pores(made out of proteins) allow information transfer into and out of the nucleus i. RNA moves out (for protein synthesis) ii.Some regulatory factors move in (along with some viruses) b. Like a channel 4. Primary function of the Endomembrane System a. Synthesis and transport/export of proteins b. Flow of proteins, and membrane, through endomembrane system i. Tracking an insulin molecule 5. Primary function of the Rough ER with examples a. Synthesizes proteins destined for secretion from cell b. Example- Peptide/protein hormones of the pituitary gland c. Cells that have a lot- pancreas, pituitary gland 6. Primary function of the Smooth ER with examples a. Produces certain lipids for secretion i. Ex. Steroids ; testes, ovaries, and adrenal glands b. Detoxifies drugs-using enzymes i. Ex. Liver cells 7. Primary function of the Golgi Apparatus a. “ Refinery/ processing plant” b. Arriving transport vesicle from ER, flattened membrane sacs, & departing transport vesicles 8. Primary function of the Lysosomes a. Digesting food particles brought into cells & digesting old mitochondria and other organelles b. Enzymes break down proteins, fats, polysaccharides, and nucleic acids 9. Primary function of the Endomembrane System a. Synthesis and transport/export of proteins b. Includes nuclear envelope, Rough and Smooth ER, transport vesicles between ER & Golgi, Golgi apparatus, transport vesicles between Golgi & plasma membrane, Lysosomes or Plasma membrane
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10.Primary function of the Cytoskeleton a. Provide structure and a trafficking network b. Guide vesicles of the endomembrane systems to the right place 11.Primary function of the Mitochondria a. “cell’s powerhouse” b. Contain proteins and enzymes responsible for oxidative respiration, rich food molecules into ATP energy 12.Primary function of Chloroplasts a. Solar energy collectors/converters b. Contain proteins and enzymes responsible for photosynthesis 13. HIV entry into the nucleus a. Synthesizes a protein
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This note was uploaded on 02/28/2008 for the course GEOG 1992 taught by Professor Nagle,nich during the Fall '07 term at Colorado.

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exam2studygruide - Cells: 1. Similarities between...

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