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AAA FOOD MANAGER CERTIFICATION EXAM 2024
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AAA FOOD MANAGER CERTIFICATION EXAM 2024
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AAA FOOD MANAGER EXAM NEWEST
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AAA FOOD MANAGER EXAM NEWEST
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AAA FOOD MANAGER CERTIFICATION EXAM 2024NEWEST EXAM COMPLETE 200 QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT)
/ALREADY GRADED A+
Name the four types of small biological molecules. Which three are capable of
forming polymeric structures? What are the names of the polymeric structures that
are formed? - ANSWER: Amino acids, monosaccharides, nucleotides, and lipids are
the four types of biological small molecules. Amino acids, monosaccharides, and
nucleotides can form polymers of proteins, polysaccharides, and nucleic acids,
respectively.
A healthy diet must include some protein. Assuming you had a way to measure the
amount of each element in a sample of food, which element would you measure in
order to tell whether the food contained protein? - ANSWER: You should measure
the nitrogen content, since this would indicate the presence of protein (neither lipids
nor carbohydrates contain appreciable amounts of nitrogen).
Which has the greater entropy, a polymeric molecule or a mixture of its constituent
monomers? - ANSWER: The polymeric molecule is more ordered and thus has less
entropy. A mixture of constituent monomers has a large number of different
arrangements (like the balls scattered on a pool table) and thus has greater entropy.
A soccer coach keeps a couple of instant cold packs in her bag in case one of her
players suffers a muscle injury. Instant cold packs are composed of a plastic bag
containing a smaller water bag and solid ammonium nitrate. In order to activate the
cold pack, the bag is kneaded until the smaller water bag breaks, which allows the
released water to dissolve the ammonium nitrate. The equation for the dissolution
of ammonium nitrate in water is shown below. How does the cold pack work? -
ANSWER: The dissolution of ammonium nitrate in water is a highly endothermic
process, as indicated by the positive value of ΔH. This means that when ammonium
nitrate dissolves in water, the system absorbs heat from the surroundings and the
surroundings become cold. The plastic bag containing the ammonium nitrate
becomes cold and can be used as a cold pack to treat an injury.
Draw a simple evolutionary tree that shows the relationships between species A, B,
and C based on the DNA sequences given here.
Species A
TCGTCGAGTC
Species B
TGGACTAGCC
Species C
, T G G A C C A G C C - ANSWER: A B C
\\/
\\/
\/
\/
\/
\/
Which compound has a higher boiling point, H2O or H2S? Explain. - ANSWER: Water
has the higher boiling point because, although each molecule has the same
geometry and can form hydrogen bonds with its neighbors, the hydrogen bonds
formed between water molecules are stronger than those formed between H2S
molecules. The electronegativity difference between H and O is greater than that
between H and S and results in greater differences in the partial charges on the
atoms in the water molecule.
Identify the hydrogen bond acceptor and donor groups in the following molecules.
Use an arrow to point toward each acceptor and away from each donor. - ANSWER:
https://edugen.wileyplus.com/edugen/courses/crs10587/ebook/c02/image_n/
w0144g.gif
Explain why water forms nearly spherical droplets on the surface of a freshly waxed
car. Why doesn't water bead on a clean windshield? - ANSWER: The waxed car is a
hydrophobic surface. To minimize its interaction with the hydrophobic molecules
(wax), each water drop minimizes its surface area by becoming a sphere (the
geometrical shape with the lowest possible ratio of surface to volume). Water does
not bead on glass, because the glass presents a hydrophilic surface with which the
water molecules can interact. This allows the water to spread out.
The structures of hexadecyltrimethylammonium (a cationic detergent) and cholate
(an anionic detergent) are shown here. Identify the polar and the nonpolar regions
of these amphipathic molecules. - ANSWER:
https://edugen.wileyplus.com/edugen/courses/crs10587/ebook/c02/image_n/
w0144l.gif
Consider the structures of the molecules below. Are these molecules polar,
nonpolar, or amphiphilic?
https://edugen.wileyplus.com/edugen/courses/crs10587/ebook/c02/image_n/
w0143k.gif - ANSWER: Compounds A and D are amphiphilic, compound B is
nonpolar, and compounds C and E are polar.
Several hours after a meal, partially digested food leaves the stomach and enters the
small intestine, where pancreatic juice is added. How does the pH of the partially
digested mixture change as it passes from the stomach into the intestine (see Table
2.3)? - ANSWER: The stomach contents have a low pH due to the contribution of
gastric juice (pH 1.5-3.0). When the partially digested material enters the small
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