engineering

Hydrogenase (acceptor)

Hydrogenase (acceptor) is a engineering 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 Hydrogenase (acceptor) rather than just read about it. In short: In enzymology, a hydrogenase (acceptor) (EC 1.12.99.6) is an enzyme that catalyzes the chemical reaction H2 + A ⇌ {\displaystyle \rightleftharpoons } AH2 Thus, the two substrates of this enzyme are H2 and A, whereas its product is AH2. This enzyme belongs to the family of oxidoreductases, specifically those acting on hydrogen as donor with other acceptors.

Key takeaways

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

Reference excerpt

In enzymology, a hydrogenase (acceptor) (EC 1.12.99.6) is an enzyme that catalyzes the chemical reaction

H2 + A ⇌ {\displaystyle \rightleftharpoons } AH2 Thus, the two substrates of this enzyme are H2 and A, whereas its product is AH2. This enzyme belongs to the family of oxidoreductases, specifically those acting on hydrogen as donor with other acceptors. The systematic name of this enzyme class is hydrogen:acceptor oxidoreductase. Other names in common use include H2 producing hydrogenase[ambiguous], hydrogen-lyase[ambiguous], hydrogenlyase[ambiguous], uptake hydrogenase[ambiguous], and hydrogen:(acceptor) oxidoreductase.

References

Shug AL, Wilson PW, Green DE, Mahler HR (1954). "The role of molybdenum and flavin in hydrogenase". J. Am. Chem. Soc. 76 (12): 3355–3356. Bibcode:1954JAChS..76.3355S. doi:10.1021/ja01641a090. Adams MW, Mortenson LE, Chen J-S (1981). "Hydrogenase". Biochim. Biophys. Acta. 594 (2–3): 105–176. doi:10.1016/0304-4173(80)90007-5. Vignais PM, Billoud B, Meyer J (2001). "Classification and phylogeny of hydrogenases". FEMS Microbiol. Rev. 25 (4): 455–501. doi:10.1111/j.1574-6976.2001.tb00587.x. PMID 11524134.

Worked examples

Example 1 — a first encounter with Hydrogenase (acceptor)

Start with the simplest possible case. Write down what Hydrogenase (acceptor) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Hydrogenase (acceptor) 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 Hydrogenase (acceptor) 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 Hydrogenase (acceptor)

In research: Hydrogenase (acceptor) appears in engineering 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 Hydrogenase (acceptor) 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: Hydrogenase (acceptor) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.12.99, Enzymes of unknown structure, Oxidoreductase stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Hydrogenase (acceptor) 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 Hydrogenase (acceptor) in 20 minutes

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

Frequently asked questions

What is Hydrogenase (acceptor) in simple terms?

In enzymology, a hydrogenase (acceptor) (EC 1.12.99.6) is an enzyme that catalyzes the chemical reaction H2 + A ⇌ {\displaystyle \rightleftharpoons } AH2 Thus, the two substrates of this enzyme are H2 and A, whereas its product is AH2. This enzyme belongs to the family of oxidoreductases, specifica…

Why does Hydrogenase (acceptor) matter?

Because it connects several engineering 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 Hydrogenase (acceptor)?

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 Hydrogenase (acceptor).