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pyrenoid

Upper-Intermediate (B2)

IPA: /ˈpaɪrəˌnɔɪd/

KK: /ˈpaɪrəˌnɔɪd/

noun
Definition

A small structure found in the chloroplasts of some algae and plants that helps in storing starch and fixing carbon dioxide.


Example

The pyrenoid plays a crucial role in the photosynthesis process of certain algae.


Conversation
Sloth A
Have you ever heard of a pyrenoid?
Sloth B
No, I haven't. What is it?
Sloth A
It's a tiny structure in algae's chloroplasts that helps with starch storage.
Sloth B
That sounds interesting! I didn't know algae had such complex features.

Synonyms & Antonyms
Synonyms
body
granule
structure
Antonyms
void
absence
lack
Root Explanation

Pyrenoid → It is formed from "pyren" (from Greek "purēn", meaning grain or seed) and the suffix "-oid" (meaning resembling or like). The word "pyrenoid" refers to a structure that resembles a grain or seed, typically found in certain algae.

Memory Tip

Think of 'pyren' meaning grain or seed, and remember that a 'pyrenoid' is a structure that resembles a grain.

Visually Confused Words
pyroid
sphyraenoid
prevoid
hyenoid
arenoid
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