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Questions and Answers
Vitamins always have the same biological activity regardless of their forms.
Vitamins always have the same biological activity regardless of their forms.
False (B)
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)
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 (A)
Vitamin A exhibits the same functions in all of its different forms.
Vitamin A exhibits the same functions in all of its different forms.
False (B)
Provitamins found in certain foods cannot be transformed into active vitamins by the body.
Provitamins found in certain foods cannot be transformed into active vitamins by the body.
Provitamins found in certain foods can be transformed into active vitamins by the body. (True/False)
Provitamins found in certain foods can be transformed into active vitamins by the body. (True/False)
Dietary guidelines do not consider the variations in biological activity of vitamins based on their different forms. (True/False)
Dietary guidelines do not consider the variations in biological activity of vitamins based on their different forms. (True/False)
What is the role of retinal in the body?
What is the role of retinal in the body?
Which form of vitamin A is responsible for hormonal regulation of growth?
Which form of vitamin A is responsible for hormonal regulation of growth?
What is the process by which beta-carotene can be transformed into active vitamin A in the body?
What is the process by which beta-carotene can be transformed into active vitamin A in the body?
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