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AS Q02 G hour - (4 4 Endospores are a equivalent to...

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CH357 Introduction to Microbiology Cadet ________________________ Quiz 02 30 points G hour Academic term 2008-1 (4) 1. Bacterial cell size is limited by a. the uptake of nutrients from the environment. b. the segregation of DNA into daughter cells. c. the amount of peptidoglycan in the cell envelope. (4) 2. Ester linkages can be found in the membrane lipids in the following domains except a. Eubacteria b. Archaea c. Eukaryotes (4) 3. The cellular energy for ABC transporters comes directly from a. the concentration gradient of the solute. b. the hydrolysis of ATP. c. the proton motive force. d. two D cells.
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Unformatted text preview: (4) 4. Endospores are a. equivalent to vegetative cells. b. produced by the majority of bacteria. c. resistant to many environmental stresses. (4) 5. Organisms growing at pH 7 are called. a. Acidophiles b. Neutrophiles c. Alkalinophiles d. X files (10) 6. Draw and label the cell envelope for gram negative bacteria. Extra credit (3 points) How are the strands of peptidoglycan linked in gram positive bacteria? Peptide bonds between the 3 rd and 4 th amino acids on two strands via a pentaglycine bridge. Lipopolysaccharide Outer membrane Periplasm Cell wall Inner membrane...
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