Question

What would likely happen to a cell treated with a compound that causes lysis (breakage) of peroxisomal membranes? Ca++ would leak out and trigger exocytosis. Proteins would leak out and fail to be secreted. Probably not much, because peroxisomes have pores in their membranes anyway. Proteins in the cytoplasm would be damaged from the release of compounds damaging to the cell.

Answer 1

Answer:

The correct answer is: Proteins in the cytoplasm would be damaged from the release of compounds damaging to the cell.

Explanation:

• Peroxisome is an organelle that remains enclosed in a single membrane, made up of a lipid bilayer.
• Eukaryotic cells possess them.
• They produce and store a large number of reactive oxygen and nitrogen species like, hydrogen peroxide, super-oxide radical and nitrogen oxide radical.
• These are necessary for catabolising or breaking down fatty acid molecules having long carbon chains by the process of beta oxidation.
• They also contain enzymes that catalyse oxidation reactions, like D-amino acid oxidase, catalase and uric acid oxidase.
• Rupture of the peroxisomal membrane will cause the release of these oxidative enzymes and oxidative radicals into the cytoplasm.
• This will cause the oxidation of amino acids in the proteins resulting in the protein to get denatured, damaged and non-functional.