Talk:Chloroplast

Wiki Education Foundation-supported course assignment
This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Emily2930, Akastigar1, Arthur.etoo, Mk23miller. Peer reviewers: Analuciarg, Aruland25.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 17:34, 16 January 2022 (UTC)

Mention why chloroplast not in animal cell
It should be mentioned in the article why chloroplast is not found in animal cell. — Preceding unsigned comment added by ScienceKeeda (talk • contribs) 15:32, 30 September 2020 (UTC)

A wrong redirect
one of the hyperlinks says Chlorophyll c but it ridirect to Chlorophyll b despite Chlorophyll c page does exist. comment added by User:(S.A.)(S.F.)BUGOC — Preceding undated comment added 21:19, 9 April 2021 (UTC)

Subtractive pigments won't give purple
The article says: Rhodoplasts have chlorophyll a and phycobilins for photosynthetic pigments; the phycobilin phycoerythrin is responsible for giving many red algae their distinctive red color. However, since they also contain the blue-green chlorophyll a and other pigments, many are reddish to purple from the combination.

There's a reference (which I can't access), but it doesn't make sense. Phycoerythrin is supposedly red, although the absorption spectrum in our article on it shows that it doesn't absorb much blue, so it's apparently purple already. Chlorophyll is green, which means it absorbs red and blue. So if you have both, then red, green, and blue will all be absorbed to some extent. In other words, adding chlorophyll doesn't make it more purple, it makes it less purple! It absorbs the blue and red of which purple is composed. We're talking about subtractive colors, not additive. If we were shining colored lights, then yes, shining a red light and a blue-green light on the same spot might give a purple. I think the purple color of some "red" algae is simply due to the phycoerythrin, plus maybe some other pigments. Eric Kvaalen (talk) 18:36, 28 January 2022 (UTC)

Unreadable
Some diagrams on this page esp. the evolutionary tree are completely unreadable/unviewable on mobile and ipad. Mindyobusiness12 (talk) 08:06, 30 December 2022 (UTC)

The table under "Pigments and chloroplast colors" could be improved for dark-mode users.
I noticed that the table under the "Pigments and chloroplast colors" has some design errors that show under dark-mode. This would be a simple edit of the table to rectify. Happy to do it if granted the ability.

Unfortunately I cannot attach a screenshot of the table from my PC due to copyright issues.

FropFrop (talk) 06:34, 14 June 2023 (UTC)