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This is a photograph of a page from a textbook, likely a biology or chemistry textbook given the molecular diagram. The page is tilted and shows a close-up of a diagram illustrating the general structure of an amino acid. The diagram features a central carbon atom (labeled "Ca") bonded to four groups: an amino group (labeled "H3N+"), a carboxyl group (labeled "COO-"), a hydrogen atom (labeled "H"), and a side chain (labeled "R"). The text on the page includes a caption below the diagram that reads: "Figure 3-2 Lehninger Principles of Biochemistry, Sixth Edition © 2013 W. H. Freeman and Company". To the right of the diagram, there is a heading in larger font that says: "Amino acids share many features, differing only at the R substituent". The background is plain white, suggesting the image is taken indoors with artificial lighting, possibly from a desk lamp or overhead lights. No people or specific external locations are visible, and there are no clues about the time of day or weather. The overall impression is that of an educational resource page.
FM-KpyEx1

Jun 30, 2026, 4:34 PM

Jalingo, Nigeria

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This is a photograph of a page from a textbook, likely a biology or chemistry textbook given the molecular diagram. The page is tilted and shows a close-up of a diagram illustrating the general structure of an amino acid. The diagram features a central carbon atom (labeled "Ca") bonded to four groups: an amino group (labeled "H3N+"), a carboxyl group (labeled "COO-"), a hydrogen atom (labeled "H"), and a side chain (labeled "R"). The text on the page includes a caption below the diagram that reads: "Figure 3-2 Lehninger Principles of Biochemistry, Sixth Edition © 2013 W. H. Freeman and Company". To the right of the diagram, there is a heading in larger font that says: "Amino acids share many features, differing only at the R substituent". The background is plain white, suggesting the image is taken indoors with artificial lighting, possibly from a desk lamp or overhead lights. No people or specific external locations are visible, and there are no clues about the time of day or weather. The overall impression is that of an educational resource page.

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FM-KpyEx1

Jun 30, 2026, 4:34 PM

Jalingo, Nigeria

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