Question

Beta-oxidation of fatty acids occurs in
A. Peroxisome
B. Peroxisome and Mitochondria
C. Mitochondria
D. Peroxisome, Mitochondria, and ER

Answer 1

Hint:
Before we proceed with the problem, we must know the definitions of Beta oxidation.
In a multi-step metabolic process called beta-oxidation, fatty acid molecules are broken down to provide energy. More specifically, during beta-oxidation, lengthy fatty acids that have been transformed into acyl-CoA chains are broken down into increasingly smaller fatty acyl-CoA chains. Acetyl-CoA, FADH2, and NADH are released as a result of this reaction, and the three of them enter the citric acid cycle, also known as the Krebs cycle, where ATP is created and consumed as energy.

Complete step by step answer:
There is still much to learn about Beta-oxidation. Prokaryotic cells' cytosols and the mitochondria of eukaryotic cells both undergo beta-oxidation. Before this may happen, fatty acids must first reach the cell, and in the case of eukaryotic cells, the mitochondria.
When fatty acid chains are too long to enter the mitochondria, beta-oxidation can also take place in the peroxisomes.
Since the negatively charged fatty acid chains cannot otherwise traverse the cell membrane, fatty acids can first reach the cytosol thanks to fatty acid protein transporters.
The fatty acid chain is then transformed into acyl-CoA by the addition of a CoA group by the enzyme fatty acyl-CoA synthase (or FACS).

Option ‘C’ is correct

Note:
Fatty acids must first enter the cell through the cell membrane, then bond to coenzyme A (CoA), creating fatty acyl CoA, before entering the mitochondria in eukaryotic cells, where beta-oxidation takes place. Beta oxidation occurs in the mitochondria of eukaryotic cells while it occurs in the cytoplasm of prokaryotic cells.