05. Polymere

Carbohydrates Lipides Proteines Nuclein Acids

Carbohydrates Lipides Proteines Nuclein Acids

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Flashcards	34
Language	Deutsch
Category	Biology
Level	University
Created / Updated	21.02.2025 / 03.03.2025
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Vorteil Glycogen (<--> Stärke)

Less space & more rapid liberation

α Glucose Polysaccarides (2)

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Starch and Glycogen

Function of Polysaccharide...

Storage and Structure

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Polymer Abbau

Hydrolysis (Hydration)

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Polymer Bildung

Dehydration (condensation reaction)

The structure and function of a polysaccharide are determined by...

sugar monomers and position of glycosidic likages

Saccharose

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Disaccharide

Maltose

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Disaccharid

α und β Glucose

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a-b Glucose

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Ringbildung in Wässriger Lösung (Glucose)

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C1 --> C5-OH

Monosaccharides with 6 C Atoms

Hexoxes

Monosaccharides with 5 C Atomes

Pentoses

Monosaccharides with 3 C Atoms

Trioses

Monosaccharides with a Keto Groupe

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Ketoses

Monosaccharides with a Aldehyd Group

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Aldoses

Bindung Nucleotides

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Phosphodiester likages (Anhydrid Bindungen)

Bindung Fatty acids- glycerols

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Esterlikages

Bindung Monosaccharides

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Glycosidic likages

Purines

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Adenine (II)

Guanine (III)

Pyrimidines

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Cytosine (III)

Thymine/Uracil (II)

Nucleinsäure 5' / 3'

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Phoshpatgruppe - 5' Sugar 3' - Phosphatgruppe

Nucleotide

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Pentose sugar: Ribose or Deoxyribose

It is hard to predict a protein’s structure from its genetically determined amino acid sequence

How can we find out the structure?

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- X-ray crystallography

- nuclear magnetic resonance spectroscopy

- Bioinformatics (compair with similar Proteins)

tertiär Struktur

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Disulfid Brücken

Ionenbindung

Wasserstoffbrücken

Hydrophobe Wechselwirkung

Four Levels of Protein Structure

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primary: sequence of amino acids

secondary: α-Helix β-pleated sheet

tertiary: interaction among side chains (R groups)

quaternary: multiple polypetide chains

Peptide Bond

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patieller Doppelbindungscharakter

⇒ keine Rotation um C=N Bindung

Aminosäure mit Schwefel

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Cystein (Cys)

Isomerie

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- Konstitutionsisomerie

- Stereoisomerie

20 Amino Acid

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Aminosäure

Chiralität L-Form

Steroids

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- mombrane fluidity (Cholesterol)

- Hormones

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