9 Questions
Vitamins always have the same biological activity regardless of their forms.
False
Vitamin A exhibits diverse functions in different forms, such as retinol's role in reproduction, retinal's necessity for vision, and retinoic acid's hormonal regulation of growth. (True/False)
True
Vitamin A exhibits the same functions in all of its different forms.
False
Provitamins found in certain foods cannot be transformed into active vitamins by the body.
False
Provitamins found in certain foods can be transformed into active vitamins by the body. (True/False)
True
Dietary guidelines do not consider the variations in biological activity of vitamins based on their different forms. (True/False)
False
What is the role of retinal in the body?
Vision
Which form of vitamin A is responsible for hormonal regulation of growth?
Retinoic acid
What is the process by which beta-carotene can be transformed into active vitamin A in the body?
Oxidation
Explore the diverse functions of vitamins in different biological forms, such as retinol's role in reproduction, retinal's necessity for vision, and retinoic acid's hormonal regulation of growth. Learn about provitamins found in certain foods and their conversion into active vitamins.
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