Surveillance cultures are in place to monitor infections implicated in cooling towers or hot water sources. Health care professionals are interested in limiting outbreaks with which organism in water supplies?
a. P. aeruginosa
b. Legionella spp.
c. Shigella spp.
d. Cyclospora spp.
B
Certain surveillance cultures are still performed as a method of limiting outbreaks. These include culturing cooling towers or hot water sources for Legionella spp.; culture of water and dialysis fluids for hemodialysis, as well as endotoxin testing; culture of blood bank products, especially platelets; and surveillance cultures for vancomycin-resistant enterococci (VRE), methicillin- or oxacillin-resistant S. aureus (MRSA), and vancomycin-resistant S. aureus (VRSA) using rectal and oropharyngeal swabs.
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Match the following items with the correct phrases.
_______1. ____________________ are the “building blocks” of proteins. _______2. ____________________ consist of a nitrogenous base, a pentose, and a phosphate group. _______3. ____________________ are the “building blocks” of polysaccharides. _______4. Sucrose, lactose, and maltose are examples of ____________________. _______5. Fructose, galactose, and glucose are examples of ____________________. a. amino acids b. disaccharides c. fatty acids d. monosaccharides e. nucleotides
What % of marine fish has some type of association with the coral reefs?
a. 25% b. 66% c. 45% d. 10% e. 20%
Which of the following statements describes the correct flow of energy conversions through living systems?
A. Chloroplasts produce carbon dioxide and water during photosynthesis, which in turn is used by mitochondria to generate ATP molecules. B. Mitochondria convert solar energy into the chemical energy of nutrient molecules such as glucose. Chloroplasts then burn glucose into ATP molecules during cellular respiration. C. Chloroplasts generate chemical energy in the form of ATP molecules and mitochondria convert ATP molecules into glucose to be used for work. D. Chloroplasts convert solar energy to the chemical energy of nutrient molecules and mitochondria convert this chemical energy into ATP molecules used for work. E. Mitochondria capture solar energy and convert it to oxygen. Oxygen is used by chloroplasts to generate ATP molecules.
People with cystic fibrosis have difficulty digesting food properly. Indicate whether the statement is true or false