SI Study session 4

SI Study session 4 - Purines pair with Pyrimidines • A...

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SI Study session 4 Monday September 14 1.carb 2. lipids 3. protein 4. Nucleic acids Monomers Nucleotides Fuctions DNA-codes for different things and store genetic information Made up of three components Pentose sugar (5 membrane ring) Nitrogenous base Phosphate group How nucleotides vary Different sugars o DNA-missing OH group on the 2’ carbons o RNA-has the OH group on the 2’ carbons. (urasil?) Different Nitrogenous Base Purines o Adenine and guanine o Double ring structure o HINT: PURE=AG Pyrimidines o Single ring structure o Cytosine is in both DNA and RNA o Thymine is in DNA ONLY o URACIL is in RNA ONLY ****HINT: longer name less complex ring structure*** Joining Nucleotides 5’phosphate----------3’ hydroxyl Phosphate on carbon 5 sugar Hydroxyl on carbon 3 sugar
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Unformatted text preview: Purines pair with Pyrimidines • A pairs with T in DNA ( U in RNA) • C pairs with G in DNA and RNA • Central Dogma • TRANSCRIPTION o Changing DNA TO RNA o Transcription in eukaryotic cells=nucleus o prokaryotic cells in cytoplasm • TRANSLATION o Changing RNA TO PROTIEN o Happens in the cytoplasm of both prokaryotic cells and eukaryotic cells CONVERSION FACTORS • Centimeters(cm) = 1x 10 -2 m • Millimeters(mm) = 1x 10-3 m • Micrometers(um)= 1x 10 -6 m • Nanomaters(nm)= 1 x 10 -9 m EX) 10 cm=.1 m 1000 um=.001 m 20 m= 2000cm 1500nm= .00001 m • Hint Larger -------- smaller (RIGHT) Smaller----- larger (LEFT) Surface area and volume • Want large surface area and smaller volume...
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This note was uploaded on 01/22/2011 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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SI Study session 4 - Purines pair with Pyrimidines • A...

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