Dictionary » S » Structure



noun, plural: structures

(1) (biology) An arrangement or organization of parts to form an organ, system, or living thing.

(2) (ecology) A network or a hierarchy of interrelated parts of a system.

(3) (chemistry) The molecular geometry, electronic structure and crystal structure of a chemical compound.

(4) The formation or mode of construction of a body or system from distinct units.

(5) A collection of interrelated or arranged parts of an entity.

(6) The overall form or organization of something.

(7) A formation, organization or construction.


In biology, structures exist at all levels of organization, i.e. from the molecular to the cellular, tissue, organ, organismic, population and ecosystem level.

Word origin: French structure < Latin structura (“‘a fitting together, adjustment, building, erection, a building, edifice, structure’”)
Related forms: structural (adjective)

Related terms:

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Re:High-throughput protein-structure determination

For your question, I think the combination of these two related words can explain. :wink: http://www.creative-biostructure.com/others1.htm https://en.wikipedia.org/wiki/Protein_Structure_Initiative

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by CandyTon
Thu Mar 12, 2015 9:08 am
Forum: Molecular Biology
Topic: High-throughput protein-structure determination
Replies: 1
Views: 556

Methylene Blue Solution use in staining variety of bacteria?

... Gram Stains is typically used to categorize bacteria into 2 groups (gram positive or negative) due to the differences in their cell wall structure. Generally, gram positive bacteria, such as those found in yogurt (Lactobacillus and Streptococcus) are less pathogenic. Their cell walls ...

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by scytek
Sun Feb 22, 2015 9:22 am
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 260

Re: Why is ATP rather than GTP, CTP or TTP the energy currency?

... Bond energy . All nucleoside triphosphates have ΔG°' values close to -31 kJ/mol I can see that these nucleoside triphosphates all have similar structure, so one might expect similar thermodynamic properties, and I can see how that links to similar ΔG°' values. However, actual ΔG in the cell ...

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by Maus
Tue Feb 03, 2015 6:46 pm
Forum: Molecular Biology
Topic: Why is ATP rather than GTP, CTP or TTP the energy currency?
Replies: 6
Views: 9517

Re: immunoglobulins

... The five major classes of immunoglobulins (Ig) are IgA, IgD, IgE, IgG, and IgM. (See accompanying figure.) Each class varies in its chemical structure and in its number of antigen-binding sites and adheres to and reacts only with the specific antigen for which it was produced.

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by RZachary1
Wed Jan 14, 2015 5:49 am
Forum: Cell Biology
Topic: immunoglobulins
Replies: 2
Views: 2150

Re: Beginner Microbiologist, looking for a place to start.

... to assume you are smart and highly motivated and so make some fairly hard-core suggestions. In particular, look into: pH, atomic and molecular structure, biological macromolecules and their subunits, glycolysis and Krebs cycle, membranes and membrane potential, transmembrane signaling, gene ...

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by jonmoulton
Mon Dec 15, 2014 5:33 pm
Forum: General Discussion
Topic: Beginner Microbiologist, looking for a place to start.
Replies: 1
Views: 1070
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