Microbiology Exam 1 - Microbiology Exam 1 Lecture 1 Bacteria prokaryotes contain peptidoglycan Archea prokaryotes Eucaryaeukaryote has nuclear

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Microbiology Exam 1 Lecture 1 Bacteria prokaryotes contain peptidoglycan Archea prokaryotes Eucarya eukaryote, has nuclear membrane, has cytoplasmic structures -algae= contain chloroplasts for photosynthesis -fungi= yeast, molds (saprophytes) -protozoa= endocytosis for feeding Viruses not living, nucleic acid + protein coat Viroids infectious RNA Prions infectious protein Lecture 2 Weak bonds ionic bonds -hydrogen bonds (H with N O) never H-C -van der Waals= hydrophobic interactions Properties of Water -cohesion -high heat capacity -solid is less dense then liquid -water dissolves polar molecules -water surrounds nonpolar molecules (micelles) Lecture 3 Macromolecules Created by dehydration Synthesis anabolic (require energy input) Broken down by Hydrolysis catabolic (release energy)
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1) Proteins Polymers of Amino acids (amino, H, carboxyl) Amino acids -have Chirality -L,D stereoisomers= need 4 different groups (mirror image) -joined by Peptide Bonds Structure (protein) -Primary= amino acid chains -Secondary= Pleated sheets, alpha helix -Tertiary= Folded protein -Quaternary= two proteins folded together 2) Carbohydrates -polymers of monosaccharides Beta form OH up (D-form) Alpha form OH down (L-form) -glycosidic bonds Beta=breaks down cellulase Alpha= breaks down amylase which breaks down sugar (saliva) 3) Nucleic Acids -polymers of nucleotides (phosphate group, sugar, nitrogenous base) -Phosphodiester bonds - 5’ 3’ 4) Lipids -Fatty acids + glycerol -single bond= saturated -double bond= unsaturated
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Cis=oil Trans= hydrogenated oil
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This note was uploaded on 11/17/2010 for the course HORT 306 taught by Professor Staff during the Spring '08 term at Purdue University-West Lafayette.

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Microbiology Exam 1 - Microbiology Exam 1 Lecture 1 Bacteria prokaryotes contain peptidoglycan Archea prokaryotes Eucaryaeukaryote has nuclear

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