The image is an informative diagram contrasting polyglutamate folate and monoglutamate folate. On the left, polyglutamate folate is depicted as having a chain of glutamic acid residues attached to the pteridine plus PABA group, which requires enzymatic cleavage by intestinal gamma-glutamyl hydrolase before absorption. On the right, monoglutamate folate consists of a single glutamic acid residue attached to the pteridine plus PABA group and is shown as being directly absorbed by intestinal cells via an active transport protein. The major difference highlighted is that polyglutamate requires digestion to monoglutamate for absorption, whereas monoglutamate is readily absorbed and is the primary form found in blood. The use of simple icons and arrows effectively illustrates the transformation and absorption process for each folate type.




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