How does the enzyme system on the endoplasmic reticulum contribute to fatty acid metabolism?
Understand the Problem
The question is asking about the role of the enzyme system located in the endoplasmic reticulum in the process of fatty acid metabolism. It presents multiple-choice options that highlight different functions, and we need to determine which correctly describes the contribution of this system.
Answer
ER enzymes, such as fatty acid desaturase, introduce double bonds in fatty acids (e.g., palmitate), using O2 and NAD+/NADPH.
Enzymes in the endoplasmic reticulum, like fatty acid desaturase, contribute to fatty acid metabolism by introducing double bonds in palmitate and stearate, converting them into unsaturated fatty acids like palmitoleic and oleic acids. This process involves O2 and NAD+ or NADPH.
Answer for screen readers
Enzymes in the endoplasmic reticulum, like fatty acid desaturase, contribute to fatty acid metabolism by introducing double bonds in palmitate and stearate, converting them into unsaturated fatty acids like palmitoleic and oleic acids. This process involves O2 and NAD+ or NADPH.
More Information
The endoplasmic reticulum plays a crucial role in generating unsaturated fatty acids, which are essential for numerous biological functions, including maintaining the fluidity of cell membranes and serving as precursors for signaling molecules.
Tips
A common mistake is to overlook the role of oxygen and co-factors like NAD+ or NADPH in these enzymatic reactions.
Sources
- Fatty acid metabolism - ScienceDirect - sciencedirect.com
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