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catalase

Upper-Intermediate (B2)

IPA: /ˈkætəˌleɪz/

KK: /ˈkætəˌleɪs/

noun
Definition

A type of enzyme that helps break down hydrogen peroxide into water and oxygen, which is important for protecting cells from damage.


Example

Catalase is essential for preventing the buildup of hydrogen peroxide in cells.


Conversation
Sloth A
Have you heard about the enzyme called catalase?
Sloth B
Yeah, I think it helps break down hydrogen peroxide, right?
Sloth A
Exactly! It's pretty interesting how it turns it into water and oxygen.
Sloth B
Science is fascinating — I love learning about stuff like catalase!

Synonyms & Antonyms
Synonyms
enzyme
catalyst
biocatalyst
Antonyms
inhibitor
blocker
suppressor
Root Explanation

Catalase is formed from "cata-" (from Greek "kata", meaning down or against) and "lase" (from the Greek "lasein", meaning to break). The word refers to an enzyme that breaks down hydrogen peroxide into water and oxygen, thus acting against its harmful effects.

Memory Tip

Think of 'breaking down' ('cata-') substances, as catalase is an enzyme that helps break down hydrogen peroxide.

Visually Confused Words
katalase
cantala
anticatalase
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