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Chemistry
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11 Nov 2019

Part A

Three different fatty acid molecules react with glycerol to formthis triacylglycerol. Of these three fatty acids, draw the smallestone. Include all hydrogen atoms.

Part B

Which class of lipids does the following molecule belong to?

fatty acids
waxes
triacylglycerols
glycerophospholipids
sphingolipids
glycosphingolipids

steroids

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Bunny Greenfelder
Bunny GreenfelderLv2
26 Oct 2019

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Related questions

Fill in the blank.

Fatty acids _______. A)can be branched or unbranched. B) are referred to as “saturated” if they have one or more C–C double bonds. C) are highly oxidized storage forms of hydrocarbons. D) by definition, never exceed 20 carbons in length.

Triacylglycerols _______. A) always have at least one fatty acid with a trans double bond. B)consist of glycerol and three different fatty acids. C) are a major energy storage form. D) consist of glycerol and three identical fatty acids.

Mass spectrometry _______. A)can be used to identify individual lipids in complex mixtures. B)cannot be used with lipids other than fatty acids. C)can determine the mass but not the identity of a lipid. D) cannot determine the locations of double bonds in a fatty acid.

Which statement is true? A) Prostaglandins are found only in the prostate gland. B) Vitamin E is a hormone precursor. C) Vitamin D regulates milk production in mammary glands. D) Membrane sphingolipids can be used to produce intracellular messengers.


Question 1 (2.5 points) Question 1 Saved Liquid vegetable oils can be converted to solid fats such as margarine by Question 1 options: 1) hydrogenation. 2) hydrolysis. 3) hydration. 4) oxidation. 5) saponification. Save Question 2 (2.5 points) Question 2 Saved A triacylglycerol that is solid at room temperature is called a(n) Question 2 options: 1) terpene. 2) lecithin. 3) oil. 4) wax. 5) fat. Save Question 3 (2.5 points) Question 3 Saved Unsaturated fatty acids have lower melting points than saturated fatty acids because Question 3 options: 1) they have fewer hydrogen atoms. 2) they have more hydrogen atoms. 3) their molecules fit closely together. 4) the cis double bonds produce a shape that reduces contact between molecules. Save Question 4 (2.5 points) Question 4 Unsaved Cholesterol is a member of the ________ group of lipids. Question 4 options: 1) glycerophospholipid 2) steroid 3) prostaglandin 4) triacylglycerol 5) wax Save Question 5 (2.5 points) Question 5 Unsaved Which of the following is an example of an emulsion? Question 5 options: Paint Milk Jelly Pitch Asphalt Save Question 6 (2.5 points) Question 6 Unsaved _____ are lipids with four fused ring structures. Question 6 options: Sphingolipids Phospholipids Steroids Enzymes Gangliosides Save Question 7 (2.5 points) Question 7 Unsaved The ionic part of a lipid is hydrophobic and the nonpolar part is hydrophilic. Question 7 options: True False Save Question 8 (2.5 points) Question 8 Unsaved The most abundant saturated fatty acid contains 16 carbons and is known as: Question 8 options: lauric acid. myristic acid. palmitic acid. stearic acid. butyric acid. Save Question 9 (2.5 points) Question 9 Unsaved What type of lipid is shown below? lipid Question 9 options: steroid wax fatty acid tryacylgliceride Save Question 10 (2.5 points) Question 10 Unsaved What type of lipid is shown below? lipid Question 10 options: steroid wax fatty acid tryacylgliceride Save

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