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Vitamin A contains a functional group called a retinyl group, which is a type of alcohol group. This group is important for the biological activity of vitamin A because it allows the molecule to interact with specific proteins in the body, such as retinol-binding protein and cellular retinol-binding protein. These interactions are essential for the transport and utilization of vitamin A in various biological processes, including vision, immune function, and cell growth and differentiation.

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5mo ago

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