Question

Fatty acids can be oxidized in peroxisomes. Which of the description concerning this process is FALSE?

A. Fatty acids oxidized in peroxisomes are usually very long-chain fatty acids.
B. Oxidation of fatty acids in peroxisomes generates ATP.
C. Oxidation of fatty acids in peroxisomes generates heat.
D. Peroxisomes contain catalase to convert H2O2 generated during fatty acid oxidation into water.

Answer 1

The false statement about the oxidation of fatty acids in peroxisomes is that it generates ATP. Peroxisomes help in breaking down very long-chain fatty acids and contain catalase to break down H2O2 produced during this process; however, ATP production is not a primary function of this oxidation in peroxisomes.

Step-by-step explanation:

Fatty acids can indeed be oxidized in peroxisomes, and this process is vital for breaking down very long-chain fatty acids. Peroxisomes contain enzymes that help in these oxidation reactions, and a product of these reactions is hydrogen peroxide (H2O2), which could be damaging if not contained. Thankfully, peroxisomes also contain the enzyme catalase, which converts H2O2 into water and oxygen, thereby preventing damage.

The false statement concerning the oxidation of fatty acids in peroxisomes is that the process generates ATP; this is not the primary function of peroxisomal oxidation. In fact, peroxisomal oxidation is more related to energy expenditure for the breakdown of fatty acids and the generation of heat than the production of ATP. Therefore, the correct answer as to which statement about fatty acid oxidation in peroxisomes is false is option B: Oxidation of fatty acids in peroxisomes generates ATP.

Answer 2

The false statement is that b) oxidation of fatty acids in peroxisomes does not generate ATP.

Step-by-step explanation:

False statement: B. Oxidation of fatty acids in peroxisomes does not generate ATP.

Fatty acids are oxidized in peroxisomes, which are small organelles that carry out oxidation reactions. Peroxisomes contain catalase, an enzyme that converts the hydrogen peroxide generated during fatty acid oxidation into water. However, unlike mitochondria, peroxisomes do not generate ATP through fatty acid oxidation.

Instead, the breakdown of fatty acids into acetyl CoA in peroxisomes is used to generate heat. This process helps to maintain body temperature and provides energy for activities such as shivering.