1) Which of the following is not true about bacteria? a) They are prokaryotes b) They have nucleus and membrane bound organelles c) They have peptidoglycan in their cell walls d) They divide by binary fission not mitosis 2) ______ are multicellular eukaryotic organisms that get their nutrition from absorption. a) Fungi b) Plants c) Protozoa d) Protist 3) Develops as a coating of macromolecules to protect the cell, and in some cases, help it adhere to its environment. a) Slime layer b) Capsules c) Cell envelope d) Glycocalyx 4) Erythromycin is first isolated in 1952 from a strain of Streptomyces isolated from a Philippine soil sample. a) True b) False 5) He discovered penicillin by accident, persistent, collaboration, and vision. a) Hans Christian Gram b) Robert Koch c) Alexander Fleming d) Paul Ehrlich 6) Viruses require __________ for growth. a) Living cells b) Bacteria c) Plants d) Animals 7) The following are synthesis and repair blocking drugs EXCEPT; a) Vancomycin b) Cephalosporins c) Penicillin d) Polymyxins 8) Chemotaxis is a phenomenon of swimming away or towards of bacteria in presence of chemical compound. a) True b) False 9) Cell theory includes all of the following EXCEPT; a) Cells arise by division of preexisting cells b) The cell is the structural unit of life c) The cell is the most primitive form of life d) All organisms are composed of one or more cells 10) Which of the following is not included in the administration of drugs into the body? a) Oral b) Intramuscular/Intravenous c) Topical d) Semisynthetic 11) Ernst Chain proposed the germ theory of infection a) True b) False 12) Which of the following lines of evidence would support the contention that this organism may be alive? a) It contains DNA b) It utilizes energy c) It is made of a single cell d) All of these 13) What type of bacterial shape is in the picture, having a spherical or ball-shape? a) Coccus b) Rod c) Sprillum d) Vibrios 14) Flagella move the cell by spinning like a propeller. a) True b) False 15) Peptidoglycan accounts for __________ of the dry weight of cell wall in many gram positive bacteria. a) 11%+ 0.22% b) About 10% c) 50% or more d) About 20% 16) Pilus is a sexual conjugation that exchange genetic material using plasmid. a) True b) False 17) Sporulation occurs for almost 4-5 hours. a) True b) False 18) Defined as a single celled eukaryotic organisms that feed heterotrophically and exhibit diverse motility mechanism? a) Protist b) Plant c) Protozoa d) Bacteria 19) In which of the following, lipo-polysaccharide is a major constituent of outer membrane of the cellwall? a) Gram-positive bacteria b) Broad-Spectrum c) Narrow-Spectrum d) Gram-negative bacteria 20) When a cell is placed in a solution, and the cell lyses, the solution is hypotonic. a) True b) False

MICROBIOLOGY QUIZ

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