Final answer:
No, Lycopene and lutein cannot be converted into vitamin A, only certain carotenoids like ß-carotene can be. The conversion is an enzymatic reaction that primarily takes place in the liver in humans.
Step-by-step explanation:
No, lycopene and lutein cannot be converted into vitamin A. While both are carotenoids, they do not have the capability to be transformed into vitamin A. Instead, ß-carotene is the most potent provitamin A carotenoid, which can be converted into vitamin A. This conversion of ß-carotene into two molecules of active vitamin A, also known as retinal, occurs with the help of the enzyme ß-carotene 15, 15'-oxygenase, primarily in the liver in humans and the intestinal walls in other animals. The process is also assisted by the presence of alpha-tocopherol (vitamin E) and is classified as a dioxygenase reaction.