What does the term "point of unsaturation" mean?

A. The area on a fatty acid chain where a hydrogen is missing from the bond.
B. The area on a fatty acid chain where carbon forms a double bond with oxygen.
C. The area on a fatty acid chain where there is a zig-zag formation.
D. The area on a fatty acid chain where a nitrogen is attached.
E. The area on a fatty acid chain where the carbon bond is holding a hydrogen.

A point of unsaturation in a fatty acid chain indicates a double bond between carbons, leading to a missing hydrogen atom. Unsaturated fatty acids can have one or more points of unsaturation, with classifications such as monounsaturated and polyunsaturated fats.

Explanation:

Point of unsaturation in a fatty acid chain refers to the area where there is a double bond between carbons (C=C), leading to a missing hydrogen atom. Unsaturated fatty acids have one or more points of unsaturation, with monounsaturated fatty acids having one double bond and polyunsaturated fatty acids having two or more double bonds.

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