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#organelle function

5 public questions tagged with this topic.

What is the major function of peroxisomes?

Peroxisomes are ubiquitous single-membrane organelles present in most eukaryotes central to lipid metabolism, ROS balance, and signaling. Their hallmark metabolic function is beta-oxidation of very-long-chain fatty acids longer than 22 carbons, branched-chain fatty acids like phytanic acid requiring alpha-oxidation first, and polyunsaturated fatty acids that mitochondria cannot handle efficiently due to double bond positions. Unlike mitochondrial beta-oxidation coupled to electron transfer flavoprotein and respiratory chain to produce ATP, peroxisomal acyl-CoA oxidases, ACOX1, ACOX2, ACOX3, tr

Ref: Wanders & Waterham, Annual Review of Biochemistry 2016: Peroxisome Biogenesis and Fatty Acid Beta-Oxidation.

A chemical selectively prevents the Golgi apparatus from packaging materials into vesicles. Which pair of cellular proce

The Golgi apparatus packages materials for intracellular delivery or secretion. Lysosomes are also formed through Golgi packaging. ATP production occurs in mitochondria, while lipid and steroid synthesis occurs mainly in the SER.

Ref: NCERT Class 11 Biology Chapter 8: Cell: The Unit of Life Endomembrane System - ER Golgi Lysosome Vacuole