Dictionary » C » Chloroplast




Chlorophyll-containing plastid found within the cells of plants and other photosynthetic eukaryotes.


Within this organelle are disk-shaped structures called thylakoids that function as the site of photosynthesis. It is because embedded in the thylakoid membrane is the antenna complex consisting of proteins, and light-absorbing pigments, including chlorophyll (the green pigment) and carotenoids. The chlorophyll is capable of absorbing light energy for use in photosynthesis. The high amounts of chlorophyll give chloroplast a green color, making it easily recognizable from the other plastids.

Word origin: Greek words chloros which means green and plast which means form or entity.

Synonym: chloroplastid.
Compare: chromoplast, leucoplast.
See also: chlorophyll.

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Spontaneous formation of nuclear membrane

... nature phospholipids. But how double membrane architecture in nucleus form spontaneously after each cell division? In the case mitochondria and chloroplast, the double membrane is form spontaneously because they are produced from parent organelles. Do nuclear pore complex have any role in the ...

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by josem
Sun Jun 22, 2014 1:14 am
Forum: Cell Biology
Topic: Spontaneous formation of nuclear membrane
Replies: 1
Views: 994

I am having difficulty identifying this structure.

This image is from a spinach chloroplast and has been made using a Transmission Electron Microscope microscope. I have been given this image to identify which has been took by a TEM. I have been for quite a while been comparing and contrasting ...

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by omegad
Sun Dec 01, 2013 7:11 am
Forum: Cell Biology
Topic: I am having difficulty identifying this structure.
Replies: 6
Views: 2378


... but i think they dont have any at all. i think that the whole cell can be consisdered as a specialised organelle. endosymbiosis also suggests that chloroplast and mitochodria organelles in eukaryotes are actually prokaryotes. thus i do not think that prokaryotes have organelles. can anyone please ...

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by Avishek890
Sun Sep 01, 2013 6:13 am
Forum: Cell Biology
Topic: prokartotes
Replies: 4
Views: 2279

Re: Why is ATP rather than GTP, CTP or TTP the energy currency?

Because ATP has the responsibility to do so and it may because of evolution. you can refer mitochondria and chloroplast for details how ATP is utilized for energy production.

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by understandbiology
Thu Jun 27, 2013 12:35 pm
Forum: Molecular Biology
Topic: Why is ATP rather than GTP, CTP or TTP the energy currency?
Replies: 5
Views: 6040


My teacher had told me it serves a different purpose and I'm supposed to explain what does for a chloroplast....and that's where I get lost

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by ChinchillaChic
Wed Nov 28, 2012 2:48 pm
Forum: Cell Biology
Topic: Chemiosmosis
Replies: 5
Views: 5536
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