Laser Technician IBEC Board Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the amino acid responsible for the production of melanin?

Phenylalanine

Tyrosine

Tyrosine is the amino acid responsible for the production of melanin, which is the pigment that gives color to the skin, hair, and eyes. The process of melanin synthesis involves the conversion of the essential amino acid phenylalanine into tyrosine through the action of the enzyme phenylalanine hydroxylase. Tyrosine then undergoes further enzymatic reactions involving the enzymes tyrosinase and others that convert it into the various forms of melanin, namely eumelanin (brown and black pigments) and pheomelanin (red and yellow pigments). Understanding this metabolic pathway is essential for laser technicians, as the amount and type of melanin in the skin can significantly impact the effectiveness and safety of laser treatments.

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Glutamine

Leucine

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