science

Gloeomargarita lithophora

Gloeomargarita lithophora is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Gloeomargarita lithophora rather than just read about it. In short: Gloeomargarita lithophora, a cyanobacterium, is the first described member of the closest known present day relative lineage of all chloroplasts (except for the independently evolved in the amoeboid Paulinella chromatophora). The ancient relative of Gloeomargaritas was engulfed by a eukaryotic host in an endosymbiotic event around 1900-1400 million years ago.

Key takeaways

Gloeomargarita lithophora belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Gloeomargarita lithophora to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Gloeomargarita lithophora from memory before moving on to harder problems.

Reference excerpt

Gloeomargarita lithophora, a cyanobacterium, is the first described member of the closest known present day relative lineage of all chloroplasts (except for the independently evolved in the amoeboid Paulinella chromatophora). The ancient relative of Gloeomargaritas was engulfed by a eukaryotic host in an endosymbiotic event around 1900-1400 million years ago. The origin of plastids by endosymbiosis signifies the beginning of photosynthesis in eukaryotes, and as such their evolutionary relationship to Gloeomargarita lithophora, as the sister group, is of high importance to the evolutionary history of endosymbiotic organelles and photosynthesis.

Description Gloeomargarita lithophora was first identified in 2007 from microbialite samples taken from alkaline Lake Alchichica (Mexico). These samples were maintained in a lab aquarium and G. lithophora was isolated from biofilm that occurred within the aquarium. G. lithophora are gram-negative, unicellular rods with oxygenic photoautotrophic metabolism and gliding motility. They contain chlorophyll a and phycocyanin and photosynthetic thylakoids located peripherally. Cells are 1.1 μm wide and 3.9 μm long on average. Growth occurred in both liquid and solid BG-11 growth media, as well as in alkaline water. Optimal growth temperature is 25 °C and optimal growth pH is 8–8.5.

Bioremediation Some evidence suggests that Gloeomargarita lithophora could serve as a biological buffer to treat water contaminated with strontium, barium, or radioactive pollutants such as radium. This could be a useful application of bioremediation.

References

Illustrations

Worked examples

Example 1 — a first encounter with Gloeomargarita lithophora

Start with the simplest possible case. Write down what Gloeomargarita lithophora claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Gloeomargarita lithophora before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Gloeomargarita lithophora ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Gloeomargarita lithophora

In research: Gloeomargarita lithophora appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Gloeomargarita lithophora in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Gloeomargarita lithophora is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cyanobacteria, Cyanobacteria stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Gloeomargarita lithophora outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Gloeomargarita lithophora in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Gloeomargarita lithophora means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Gloeomargarita lithophora out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Gloeomargarita lithophora in simple terms?

Why does Gloeomargarita lithophora matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Gloeomargarita lithophora?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Gloeomargarita lithophora.