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  2. Pyroglutamic acid - Wikipedia

    en.wikipedia.org/wiki/Pyroglutamic_acid

    Pyroglutamic acid (also known as PCA, 5-oxoproline, pidolic acid) is a ubiquitous but understudied natural amino acid derivative in which the free amino group of glutamic acid or glutamine cyclizes to form a lactam. [1] The names of pyroglutamic acid conjugate base, anion, salts, and esters are pyroglutamate, 5-oxoprolinate, or pidolate.

  3. PCA - Wikipedia

    en.wikipedia.org/wiki/Pca

    PCA may refer to: Medicine and biology ... Pineywoods Community Academy, a charter school district in Lufkin, Texas; Prestonwood Christian Academy, Plano, Texas;

  4. Nutrient cycle - Wikipedia

    en.wikipedia.org/wiki/Nutrient_cycle

    A nutrient cycle (or ecological recycling) is the movement and exchange of inorganic and organic matter back into the production of matter. Energy flow is a unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic.

  5. Polymerase cycling assembly - Wikipedia

    en.wikipedia.org/wiki/Polymerase_cycling_assembly

    Polymerase cycling assembly (or PCA, also known as Assembly PCR) is a method for the assembly of large DNA oligonucleotides from shorter fragments. The process uses the same technology as PCR, but takes advantage of DNA hybridization and annealing as well as DNA polymerase to amplify a complete sequence of DNA in a precise order based on the single stranded oligonucleotides used in the process.

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  7. Plant–animal interaction - Wikipedia

    en.wikipedia.org/wiki/Plantanimal_interaction

    Plant-animal interactions are important pathways for the transfer of energy within ecosystems, where both advantageous and unfavorable interactions support ecosystem health. [ 1 ] [ 2 ] Plant-animal interactions can take on important ecological functions and manifest in a variety of combinations of favorable and unfavorable associations, for ...

  8. Citric acid cycle - Wikipedia

    en.wikipedia.org/wiki/Citric_acid_cycle

    Overview of the citric acid cycle. The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle, or TCA cycle (tricarboxylic acid cycle) [1] [2] —is a series of biochemical reactions to release the energy stored in nutrients through the oxidation of acetyl-CoA derived from carbohydrates, fats, proteins, and alcohol.

  9. para-Chloroamphetamine - Wikipedia

    en.wikipedia.org/wiki/Para-Chloroamphetamine

    In animals, doses of PCA of 0.5 to 5 mg/kg acutely produce a variety of behavioral and neurochemical effects thought to be due to serotonin release. [3] [19] [20] Consequent enhancement of serotonergic signaling, serotonergic effects like myoclonus, the serotonin behavioral syndrome, including tremor, rigidity, Straub tail, hindlimb abduction, lateral head weaving, and reciprocal forepaw ...