Dictionary » F » Filament



noun, plural: filaments

(1) threadlike structure.

(2) a fiber or fibril.

(3) a long chain of protein subunit, as protein filament.

(4) (botany) the stalk of a stamen of a flower, supporting the anther.

(5) (mycology) hypha in fungi and actinobacteria.

(6) (ornithology) the barb of a down feather.


Word origin: NL fīlāmentum, equiv. to LL fīlā(re) to wind thread.

Related forms: filamentous (adjective)

Related terms:

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Structure of flower

... attract pollinators to the plant. Corolla All the petals together form the corolla. Stamen Male part of the flower, consisting of the anther and filament, makes pollen grains. Filament The stalk of the stamen which bears the anther. Anther The pollen bearing portion of a stamen. Pollen Grains ...

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by snowfall
Thu May 30, 2013 5:29 pm
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 8310

Structure of flower

... it is male reproductive whorl. unit of androecium is called stamen. when stamens are free called polyandrous & when united called epiandrous. filament & anter are two parts of androceium. 4.gynoecium:- it is female reproductive whorl. unit of gynoecium is called carpel. carpel consist ...

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by zodesujit
Sun May 19, 2013 5:46 am
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 8310

Re: Multicellular prokaryote

... heterocysts which are specialized for nitrogen fixation and (as far as I remember) they don't carry out photosynthesis, the other cells in the filament carry out photosynthesis. Now, this is a clear example of functional differentiation in prokaryotic colonies and I suppose the cells depend ...

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by Adz795
Sun Feb 05, 2012 8:42 am
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 27
Views: 41495


... -ve. tsi: K/K, middle yellow, no H2S and gas. 4) blood agar: greenish-brownish, mucoid, non-haemolytic gram stain: positive, long thin rod/filament catalase +ve, oxidase +ve, indole -ve, urease -ve, motility +ve tsi: A/A, no H2S and gas

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by vivian87
Fri Apr 08, 2011 9:38 am
Forum: Microbiology
Replies: 0
Views: 2523

microfilaments and microtubules

which of the following apply to microtubules, which to microfilaments and which to both? 1. all the nucleotide-binding sites point the same direction 2. monomers bind GTP 3. dimers polymerize into protofilaments that they associate side by side 4. structure ...

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by nickname
Fri Oct 01, 2010 9:34 pm
Forum: Molecular Biology
Topic: microfilaments and microtubules
Replies: 0
Views: 6359
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