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I think we can look at it like this Your noncyclic pathway liberates 4H+ from two water molecules. We're doing that because to get one O2, you've got to split 2H2O. This happens in photosystem II. So in the next step (you know, really broadly) the electrons are passed to cytochrome b6-f complex, where each electron allows it to pump 2H+ into the thylakoid ...


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Sorry for the poor quality of the image, but its just as a reference for my answer. You have made the question too complex. From the figure, we find that 1 H2O gives 2 H+ and 2 e-. 2 e-, through quinone cycle, provide 4 H+ i.e. total 6 H+ which form 6/3 = 2 ATP i.e. 1 H2O => 6 H+ => 2 ATP Multiply this equation by 8 and you get: 8 H2O => 48 H+ => 16 ...


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That one is Greek origin from aneimon or "naked, unclad, without clothing" which is to refer to the panicles of the sporangia.


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Forest Succession 101 Pines are actually fast-growing, shade-intolerant, early-successional species. When land is allowed to lay fallow after being cleared by fire, wind storms, human land use or other major disturbance, the successional sequence will begin. At first only herbs and grasses grow, but eventually these are shaded out by shrubs and tree ...


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Monilophytes = Leptosporangiate ferns, horsetails, whisk ferns, marattioid ferns, & ophioglossoid ferns. According to A Dictionary of Entomology: Latin, monil = necklace As for "phyte," I'll quote this Source: Greek, -phyte = denoting a plant or plantlike organism So it literally means "necklace plants. " From Rai & Graham (2010) : ...


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Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences: The monilophytes (= Infradivision Moniliformopses, sensu Kenrick and Crane, 1997⇓) share a distinctive vasculature, having protoxylem confined to lobes of the xylem strand (Stein, 1993⇓), therefore the Latin moniliformis appellation for ...


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Apparently it is used by Cannabis sativa as a type of sunscreen as it absorbs UV light https://www.reddit.com/r/trees/comments/2v79dv/science_sunday_13_wait_why_does_cannabis_have_thc/ https://en.wikipedia.org/wiki/Tetrahydrocannabinol


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Actually citric acid is not only available in citrus fruit but also in pretty much any living thing. it is an important intermediate in Krebs cycle, but I guess the main reason that it is available in high concentrations in citrus fruits is because citrate is an inhibitory compound for phosphofructokinase, that means it stops the glycolysis and hence it ...


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.. I'm not aware of large nicotine levels in other parts of plants. I assume tobacco will still have the highest nicotine levels, because that's what people have been selecting for for centuries. .. - user137 That logic seems compellingly sound. Based on that, why would a researcher even bother to measure the nicotine content of the other parts of ...


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I know nothing about plant physiology but I googled your question and here is what I found Vascular cambium From wiki The vascular cambium (plural cambia) is a plant tissue located between the xylem and the phloem in the stem and root of a vascular plant, and is the source of both the secondary xylem growth (inwards, towards the pith material at the ...


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Albizia julibrissin (Persian silk tree) is doubly compound (AKA bipinnate) and has a conspicuous pink/white fluffy flower. This tree is an Asian native, but it's a commonly cultivated (and equally commonly escaped) plant in the U. S. Should be able to find it in numerous locations. Look in yards and along roads. ...


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This is actually not a gall as other answers have suggested. This is likely a fungus called Cedar-apple rust (Gymnosporangium juniperi-virginianae). The fungus only thrives in the presence of both Juniperus virginiana (Eastern red cedar) and apple (Malus spp.) trees. The leaf in the picture belongs to some species of the apple genus and the growths are ...


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For a more detailed answer, galls also known as cecidia are formed when a specific metamorphic stage of(usually larvae and aldut stages laying eggs) insects or mites that colonize a plant organ making it their microhabitat and food source. The insect stage normally makes use of meristematic (areas of rapid cell division) tissue where they inject cytokinins ...


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There are at least three possible explanations (and quite likely more): 1) You may be correct in suggesting that the OTT isn't "very coherent."* In other words, they may have a little work to do. I don't know enough about the site to offer a solid opinion. 2) The OTT may be unintentionally repeating someone else's error(s). 3) The OTT has to work with the ...


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From what I know of ant-Acacia mutualisms, I've never heard of an ant gall in an Acacia. The link in your question also never mentions a gall. You've likely confused either domatia or Beltian bodies as a gall. Both differ greatly from galls in that domatia or Beltian bodies are created by the plant and not by the insect. Domatia are small plant-made ...


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Evolutionarily, these tropical fruit trees would want to maximize the amount of offspring that are produced and that survive to reproduce. This would increase their fitness and ensure that their genes are passed on to the next generation. Tropical fruit trees would "want" (they're not actively strategizing) to produce their fruit at a time when other ...


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To my knowledge, Populus is one of the main model species when it comes to perennials and trees. It is for instance used in several sequencing projects, and to study accelerated breeding in strains that are promoted to flower at a very early age. Excluding trees, other perennial species that has been described as model species are Panicum virgatum ...


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Trees fruit before the monsoon season to maximize seed germination and seedling recruitment. previous studies have shown that in many species, fruiting occurs just before the wet season such that seeds germinate and establish during the wet season when conditions are most favourable. Smythe N. 1970 Relationships between fruiting seasons and seed dispersal ...



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