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The image displays notes on the quaternary structure of proteins, accompanied by diagrams of collagen and hemoglobin. The text explains that quaternary structure results from the aggregation of two or more polypeptide subunits held together by non-covalent interactions like H-bonds, ionic, or hydrophobic interactions. Examples provided are collagen, described as a fibrous protein of three polypeptides supercoiled like a rope, and hemoglobin, a globular protein with four polypeptide chains. Insulin is also mentioned as having two polypeptide chains.

The diagrams visually represent these structures:
(a) Collagen shows a triple helix structure formed by three intertwined polypeptide chains.
(b) Hemoglobin depicts a complex, globular structure composed of alpha and beta chains, with iron and heme groups integrated.

There is no information in the image that relates to Jalingo, Nigeria.
FM-FzB8r2

Jun 28, 2026, 9:20 PM

Jalingo, Nigeria

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The image displays notes on the quaternary structure of proteins, accompanied by diagrams of collagen and hemoglobin. The text explains that quaternary structure results from the aggregation of two or more polypeptide subunits held together by non-covalent interactions like H-bonds, ionic, or hydrophobic interactions. Examples provided are collagen, described as a fibrous protein of three polypeptides supercoiled like a rope, and hemoglobin, a globular protein with four polypeptide chains. Insulin is also mentioned as having two polypeptide chains. The diagrams visually represent these structures: (a) Collagen shows a triple helix structure formed by three intertwined polypeptide chains. (b) Hemoglobin depicts a complex, globular structure composed of alpha and beta chains, with iron and heme groups integrated. There is no information in the image that relates to Jalingo, Nigeria.

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FM-FzB8r2

Jun 28, 2026, 9:20 PM

Jalingo, Nigeria

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