biology

Picrophilus

Picrophilus is a biology 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 Picrophilus rather than just read about it. In short: Picrophilus is a genus of archaeans in the family Picrophilaceae. Picrophilus is an extremely acidophilic genus within Euryarchaeota.

Key takeaways

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

Reference excerpt

Picrophilus is a genus of archaeans in the family Picrophilaceae. Picrophilus is an extremely acidophilic genus within Euryarchaeota. These microbes are the most acidophilic organisms currently known, with the ability to grow at a pH of less than 0.5. They were first isolated from samples taken from acidic hot springs and dry hot soil in Hokkaido (Japan). They are obligate acidophiles and are unable to maintain their membrane integrity at pH values above 4. While phylogenetically related to other organisms within Thermoplasmata, unlike Thermoplasma and Ferroplasma, Picrophilus contains an S-layer cell wall.

Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).

Illustrations

Worked examples

Example 1 — a first encounter with Picrophilus

Start with the simplest possible case. Write down what Picrophilus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Picrophilus 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 Picrophilus 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 Picrophilus

In research: Picrophilus appears in biology 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 Picrophilus 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: Picrophilus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Archaea genera, Archaea stubs, Methanobacteriati, so understanding it makes those chapters shorter.
In everyday life: Look for Picrophilus 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 Picrophilus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Picrophilus 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 Picrophilus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Picrophilus in simple terms?

Picrophilus is a genus of archaeans in the family Picrophilaceae. Picrophilus is an extremely acidophilic genus within Euryarchaeota.

Why does Picrophilus matter?

Because it connects several biology 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 Picrophilus?

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 Picrophilus.