biology

Hallerella

Hallerella 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 Hallerella rather than just read about it. In short: Hallerella is a genus of strictly anaerobic, rod-shaped bacteria in the family Fibrobacteraceae. The type species is Hallerella porci.

Key takeaways

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

Reference excerpt

Hallerella is a genus of strictly anaerobic, rod-shaped bacteria in the family Fibrobacteraceae. The type species is Hallerella porci. Both recognized species were isolated from the caeca of pigs.

Taxonomy The genus contains two species with validly published names: H. porci and H. succinigenes. Its name honours microbiologist Dirk Haller for his research on interactions between intestinal microorganisms and their hosts.

References

Worked examples

Example 1 — a first encounter with Hallerella

Start with the simplest possible case. Write down what Hallerella 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 Hallerella 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 Hallerella 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 Hallerella

In research: Hallerella 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 Hallerella 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: Hallerella is common in secondary-school and first-year university syllabi. It links to neighbouring topics Anaerobes, Bacteria genera, Fibrobacterota, so understanding it makes those chapters shorter.
In everyday life: Look for Hallerella 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 Hallerella in 20 minutes

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

Frequently asked questions

What is Hallerella in simple terms?

Hallerella is a genus of strictly anaerobic, rod-shaped bacteria in the family Fibrobacteraceae. The type species is Hallerella porci.

Why does Hallerella 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 Hallerella?

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 Hallerella.