science

Soricidin

Soricidin 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 Soricidin rather than just read about it. In short: Soricidin is a paralytic oligopeptide found in the venomous saliva of the northern short-tailed shrew (Blarina brevicauda); in the wild, shrews use it to paralyze their prey (typically insects). Its name is a reference to "Soricidae", the family to which shrews belong.

Key takeaways

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

Reference excerpt

Soricidin is a paralytic oligopeptide found in the venomous saliva of the northern short-tailed shrew (Blarina brevicauda); in the wild, shrews use it to paralyze their prey (typically insects). Its name is a reference to "Soricidae", the family to which shrews belong. In addition to blocking transmission of nerve impulses by inhibiting sodium channels, soricidin also inhibits the TRPV6 calcium channel, which is over-expressed in many epithelial-cell cancers; as a result, soricidin is able to selectively induce apoptosis in breast, ovarian, and prostate cancer. It is 54 amino acids long. It was first extracted and identified in 2000, as a result of basic research by Jack Stewart of Mount Allison University.

References

Worked examples

Example 1 — a first encounter with Soricidin

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

In research: Soricidin 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 Soricidin 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: Soricidin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ion channel toxins, Peptides, Shrews, so understanding it makes those chapters shorter.
In everyday life: Look for Soricidin 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 Soricidin in 20 minutes

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

Frequently asked questions

What is Soricidin in simple terms?

Why does Soricidin 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 Soricidin?

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 Soricidin.