MCB 100 1st Edition Lecture 1Outline of Current Lecture II. Introducing the study of microbiology III. Organisms and their relative sizes Current LectureI. Microbiology: study of small living things (micro-:small; bio-:living; -ology:study of)A. Study of:i. Bacteria ii. Archaea iii. Virusesiv. Protozoav. Lower fungi (yeasts and molds) vi. AlgaeII. How small are organisms? A. Creature was originally considered to be a microorganism if was too small to be seen with naked eye. (<0.1mm), BUT some bacteria discovered are big enough to be visible. III. Contemporary IdeaA. Size is no longer a critical trait that determines if an organism is a microorganism or notB. MICROORGANISMS DO NOT FORM DIFFERENTIATED TISSUESC. ALL LIVING ORGANISMS ARE COMPOSED OF CELLS D. Most microorganisms are composed of just one cell and have simple life cycles (cell grows bigger and then divide into two small “baby” cells)IV. Measurements (metric system)A. Angstrom- measuring atomsB. Micron- measuring cells V. Little things:VI. (Smallest to biggest)A. Atoms B. Small molecules (AA’s, nucleotides, sugars)C. Biological macromolecules (proteins, nucleic acids, polysaccharides, lipids)D. Subcellular structures (viruses, ribosomes, microtubules)E. Rickettia, chlamydia, mycoplasma, nanobacteriaF. Most bacteria and archaeaG. Yeasts and glagellated protozoaThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.H. Typical plant and animal cells, amoebae (amebas)I. Ciliated protozoaJ. Zooplankton (small multicellular
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