Select the best response to the question. ?
Hand hygiene with an alcohol-based hand rub is indicated in which of the following situations?
A) after eating
B) before repositioning a patient in bed
C) if hands are visibly soiled
D) after using the restroom
B
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The measure of the concentration of solutes in a solution is ____
a. tonicity b. osmosis c. hydrostatic pressure d. diffusion e. facilitated diffusion
Fructose and galactose both have six carbon atoms, twelve hydrogen atoms and six oxygen atoms, just like glucose. A friend of yours says: "Since those sugars have the same number of atoms, they should have the same name." You answer: "While they do have the same number and type of atoms,
A. they are named differently because of their quaternary structures, which is very important in carbohydrates, especially glucose." B. they are all polysaccharides and have slightly different functions within organisms and therefore have different names." C. they are named differently because they are involved in different DNA nucleotide formation." D. they are named differently because when heated above their optimal temperature they become denatured and will not react with their substrates." E. they are named differently because they are alternate forms of the monosaccharide, glucose."
Which of the following is a fungus and is considered part of the normal human microbiome?
A. Candida B. Lactobacillus C. E. coli D. Bacteroides E. Staphylococcus
Several different classes of enzymes are needed for the catabolism of carbohydrates. Which of the following descriptions best matches the function of a dehydrogenase?
(a) An enzyme that catalyzes the rearrangement of bonds within a single molecule. (b) An enzyme that catalyzes a change in the position of a specific chemical group within a single molecule. (c) An enzyme that catalyzes the oxidation of a molecule by removing a hydride ion. (d) An enzyme that catalyzes the addition of phosphate groups to other molecules.