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Question 1
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def inition of lipi d dif fer ent fro m pro tei n and ca rb oh yd ra te ?
How is the
Your Answer:
l i k e p r o t e i n s a n d c a r b o h y d r a t e s ,
di ss ve s in a n o n - p o l a r so lv en t. U n
Alipid is an or ga ni c mo le cu le th at ol
In st ea d, li pi ds sh ar e a ch ar ac te ri st ic
se t of c o m p o u n d s th at ti di ly de fi ne li pi ds .
there is no st an da rd
phys ic al pr op er ty of be in g no np ol ar .
be in g so lu bl e in a n o n - p o l a r so lv en t.
b a s e d on th e fu nc ti on al de fi ni ti on of
The li pi d de fi ni ti on is
s ar e ba se d on th e st ru ct ur e.
Proteins and carbohydrate
Question 2
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What are three functions of lipids?
Your Answer:
_serve as st ru ct ur al co mp on en ts of cel l me mb ra ne s
-function as energy storehouses
-function as important signaling molecules
gy , st or ag e, vi ta mi n, pr ot ec ti on , an d in su la ti on
Any three of: ener
Question 3
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How does the omega numbering system differ from the simplified notation?
Your Answer:
The simplified notation starts number at the caboxylic acid group (-COOH). The omega system indicates
the position of the double bond end opposite of the -COOH group; it is numbered from the -CH3 end of
3 ;
the molecule
, D
\1phf|ed notatlon starts number at the carboxylic acid, while the omega syslcm starts at
,‘osNe end - from the -CHa.
,Aefstion 4
/070 pts
What is the simplified notation for the following omega-8 compound?
Your Answer:
omega-8 fatty acid
20:1A1
0
Question 5
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What does unsaturated mean for a fatty acid?
Your Answer:
they contain one or more double bonds
Unsaturated indicates that one or more double bonds are present.
Question 6
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What is the difference between a fat and oil?
Your Answer:
oil- if a lipid is a liquid at room temperature (25 degrees C)
fat- if a lipid is a solid at room temperature (25 degrees C)
An oil is a lipid that is a liquid at room temperature, while fat is a solid at room temperature.
Question 7
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How are phosphoglycerides similar to triacylglycerols? How they different?
Your Answer: