Figure 215d d complex macromolecules conjugated

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Unformatted text preview: of two The quaternary consists or more polypeptides. or – Two or more (≥ 2), 3D-folded polypeptides associated into a multi-peptide complex. Figure 2.15d d.) Complex Macromolecules • Conjugated proteins consist of amino consist acids and other organic molecules: acids 1. Glycoproteins 2. Nucleoproteins 3. Lipoproteins 4. Phosphoproteins 15 2/1/2010 4. Nucleic Acids • Consist of nucleotides. Consist nucleotides • Nucleotides consist of a: – 1. 2. 3. (Phosphate-Sugar-Base) Pentose Phosphate group Nitrogen-containing (purine or pyrimidine) base or pyrimidine Figure 2.16 a.) DNA • Has deoxyribose Has deoxyribose • Exists as a double Exists helix helix • A hydrogen bonds hydrogen with T • C hydrogen bonds hydrogen with G Figure 2.16 16 2/1/2010 b.) RNA • Has ribose Has ribose • Is single-stranded • A hydrogen bonds hydrogen with U • C hydrogen bonds hydrogen with G Figure 2.17 c.) ATP • Has ribose, adenine, and Has 3 phosphate groups phosphate X -X X X X X Figure 2.18 17 2/1/2010 ATP • Is made by dehydration synthesis. Is dehydration – Absorbs/requires energy = Endergonic Absorbs/requires Endergonic • Is broken by hydrolysis to liberate useful Is hydrolysis to energy for the cell. energy – Releases energy = Exergonic Releases Exergonic Chapter 4 Functional Anatomy of Functional Prokaryotic & Eukaryotic Cells Cells 18...
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