(a) Interpretation:
The structure of Cis-9-Dodecenoic acid should be drawn.
Concept Introduction:
The cis-9-dodecenoic acid is an isomer of a 9-dodecenoic acid having a cis configuration. The linear chain of this fatty acid consists of 12 carbons, with the terminal ends having a carboxyl group.
Explanation of Solution
The fatty acid Cis-9-Dodecenoic acid having 12 carbon chain and a cis configuration is depicted in the figure given below:
(b) Interpretation:
The structure of 18:1cΔ11 should be drawn.
Concept Introduction:
The 18:1cΔ11 fatty acid is a monounsaturated fatty acid, in this the number 18 depicts the number of carbon atoms in the linear chain, 1 represents a single unsaturation site, cΔ11 represents the presence of unsaturation at the 11th carbon.
Explanation of Solution
The fatty acid 18:1cΔ11 having 18 carbon chain and with an unsaturation on the 11th carbon is depicted in the figure given below:
(c) Interpretation:
The structure of a saturated fatty acid that should melt below 300C should be drawn.
Concept Introduction:
The fatty acids having a lighter chain tends to melt at a lower temperature. Increase in the number of carbons increases the melting point of the fatty acids. The n-octanoic acid is well known to melt at a temperature of 16-170C.
Explanation of Solution
The structure of n-octanoic acid having a melting point 16-170C is depicted in the figure given below:
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Chapter 10 Solutions
Biochemistry: Concepts and Connections (2nd Edition)