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peroxisome

Upper-Intermediate (B2)

IPA: /pəˈrɒksɪˌsoʊm/

KK: /pəˈrɒksɪˌsoʊm/

noun
Definition

A small structure within a cell that contains enzymes responsible for breaking down harmful substances, including hydrogen peroxide.


Example

Peroxisomes play a crucial role in detoxifying the cell by breaking down fatty acids and hydrogen peroxide.


Conversation
Sloth A
Have you ever heard of a peroxisome?
Sloth B
Yeah, I think it has something to do with breaking down hydrogen peroxide, right?
Sloth A
Exactly! They play a key role in cellular metabolism.
Sloth B
That's pretty cool; I didn't know they were so important!

Synonyms & Antonyms
Synonyms
organelle
vesicle
compartment
Antonyms
none
Root Explanation

Peroxisome is formed from "per-" (meaning through) and "oxygen" (from Greek "oxus", meaning sharp or acid) combined with "-some" (meaning body). The term refers to a cellular organelle that contains enzymes for oxidative reactions, thus relating to oxygen's role in these processes.

Memory Tip

Think of 'per-' meaning through and 'oxygen' relating to the sharpness of oxidative reactions, which helps you remember that a peroxisome is a body involved in processes that use oxygen.

Visually Confused Words
perisome
peristome
perispome
perilsome
percnosome
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