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16 Isoniazid works by preventing synthesis of mycolic acids Which patient below would benefit most from isoniazid a A patient with influenza caused by H1N1 influenza virus b A patient with strep throat caused by Streptococcus pyogenes c A patient with Lyme disease caused by Borrelia burgdorferi d A patient with tuberculosis caused by Mycobacterium tuberculosis 17 The periplasm a Describes the space in which the genomic DNA is concentrated b Describes the space between the inner and outer membrane of a Gram negative cell c Describes the space between the inner and outer membrane of a Gram positive cell d Both B and C 18 Which of the following accurately describes a difference between Gram positive and Gram negative bacteria a Gram positive bacteria have a thicker layer of peptidoglycan compared to Gram negative bacteria b Gram negative bacteria contain capsules and Gram positive bacteria do not contain capsules c Gram negative bacteria are motile and Gram positive bacteria are not motile d Gram negative bacteria contain carboxysomes and Gram positive bacteria do not contain carboxysomes 19 Pseudomonas aeruginosa possesses a multi drug efflux pump driven by ATP hydrolysis This pump enables it to maintain resistance to several types of antibiotics This efflux pump would be an example of what type of transport a Facilitated diffusion b Simple diffusion c Phosphotransferase system d ABC transport 20 Which of the following correctly describes the function of the bacterial cell wall a It is a semi permeable barrier that separates the inside of the cell from the outside of the cell b It is a protective structure that prevents destruction of the organism by phagocytic immune cells c It helps bacteria to adhere to surfaces d It is a protective structure that helps to maintain cell shape and helps it to counter the osmotic pressure that results from water flowing into the cell 21 Which of the following help in the process of photosynthesis as well as carbon dioxide fixation in some photosynthetic bacteria a Carboxysome and thylakoids b Carboxysome and gas vesicles c Thylakoids and magnetosomes granules randomly

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