Which of the Following Is Not True of Melanin

question 106

Multiple Choice

Which of the following is not true of melanin?

• A) There is more than 1 type of melanin.
• B) Melanin is released by exocytosis.
• C) It is manufactured from tyrosine.
• D) It is packaged in vesicles called melanosomes.
• E) It absorbs UV radiation.

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Definitions:

Vinyl Protons

Hydrogen atoms attached to a carbon-carbon double bond, often involved in chemical shifts in NMR spectroscopy.

Coupling Constants

A parameter in nuclear magnetic resonance (NMR) spectroscopy that reflects the interaction between nuclear spins and helps in elucidating molecular structure.

IR Absorptions

Refers to the specific wavelengths at which infrared (IR) radiation is absorbed by a molecule, providing insights into the types of bonds and functional groups present.

Compound Name

The systematic or common naming of chemical compounds based on their structure and the nomenclature rules of chemistry.