The Same Four Reactions That Are Central to The $\beta$ Oxidation Pathway Are Also Present in the Fatty Acid Synthesis

question 53

Multiple Choice

The same four reactions that are central to the $\beta$ oxidation pathway are also present in the fatty acid synthesis pathway, except they are reversed. What is a key difference between the four reactions in these two pathways?

• A) One set of reactions synthesizes an ATP, whereas the other set uses an ATP.
• B) One set occurs in the muscle, whereas the second pathway occurs in the liver.
• C) One pathway adds three carbon atoms at a time, whereas the other removes two carbons.
• D) Four enzymes are used in one, whereas one enzyme is used in the other.

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Definitions:

Facilitation

In ecology, a situation in which one species has a positive effect on other species in the community, for example, by enhancing the local environment.

Species Interaction

The various ways in which species interact within an ecosystem, including predation, competition, symbiosis, and parasitism.

Local Environment

The immediate physical, biological, and cultural settings in which an organism or community lives.

Producer

An organism, typically a plant or algae, that creates its own food through photosynthesis, serving as a primary source of energy in an ecosystem.