ALL IN ONE BIOD 121 MODULE 1 2 3 4 5 6
PLUS FINAL EXAMS SOLUTIONS
EXAMINATION TEST 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
⩥ Function of vitamines. Answer: help regulate and support a variety of
processes related to digestion, absorption, metabolism, and body
regulations.
⩥ Yield no energy. Answer: vitamines
⩥ Vitamins are important for. Answer: growth and maintenance of our
bodies
⩥ How many essential vitamins are there. Answer: 13 known
⩥ Essential Vitamins:. Answer: found in both plant and animal sources,
and the majority cannot be synthesized by the human body.
⩥ Exceptions to vitamins that do not have to be consumed by in the
diet:. Answer: Vitamin K and biotin (produced from gut flora in the GI
tract), and vitamin D which is synthesized in the skin through sunlight
,⩥ Two vitamins can be produced through precursors:. Answer: Vitamin
A can be produced after we consume food containing beta carotene, and
niacin can be produced when we consume foods containing the amino
acid tryptophan.
⩥ Organic compounds must meet 2 criteria in order to be considered a
vitamin:. Answer: 1) enough of the compound must be consumed in the
diet to maintain health
2) symptoms of deficiency occur in the absence of the compound,
resulting in declining health, but is restored when the deficiency is
corrected.
⩥ Why do we fortify and enrich our foods?. Answer: During
manufacturing of food, some nutrients are lost.
⩥ Enrichment:. Answer: the process of taking nutrients that were lost in
the milling or processing of the food and adding them back to the final
product
⩥ Fortification. Answer: process of supplementing a product with
additional vitamins that would not normally be in that product (i.e.
putting vitamin D in orange juice or adding vitamins to cereal)
⩥ Vitamins can be classified as:. Answer: fat soluble or water soluble
, ⩥ Fat-soluble vitamins:. Answer: dependent on dietary fat for
absorption. Once absorbed they are stored in adipose tissue and liver.
⩥ Vitamins A, D, E, and K are:. Answer: fat soluble
⩥ Since fat-soluble vitamins are not easily excreted from the body,
excess consumption over time could lead to:. Answer: toxic levels in the
body
⩥ Two forms of Vitamin A:. Answer: Preformed (Retinol, Retinal) and
Provitamin (carotenoids)
⩥ Functions of Preformed vitamin A. Answer: vision, immunity, growth
development, disease prevention
⩥ Functions of Provitamin A. Answer: precursors, antioxidants
⩥ Deficiencies of Preformed Vitamin A. Answer: night blindness,
Xeropthalmia
⩥ Xeropthalmia:. Answer: occurs when mucus isn't developing and
blindness sets in
⩥ Deficiencies of Provitamin A. Answer: Macular Degeneration
PLUS FINAL EXAMS SOLUTIONS
EXAMINATION TEST 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
⩥ Function of vitamines. Answer: help regulate and support a variety of
processes related to digestion, absorption, metabolism, and body
regulations.
⩥ Yield no energy. Answer: vitamines
⩥ Vitamins are important for. Answer: growth and maintenance of our
bodies
⩥ How many essential vitamins are there. Answer: 13 known
⩥ Essential Vitamins:. Answer: found in both plant and animal sources,
and the majority cannot be synthesized by the human body.
⩥ Exceptions to vitamins that do not have to be consumed by in the
diet:. Answer: Vitamin K and biotin (produced from gut flora in the GI
tract), and vitamin D which is synthesized in the skin through sunlight
,⩥ Two vitamins can be produced through precursors:. Answer: Vitamin
A can be produced after we consume food containing beta carotene, and
niacin can be produced when we consume foods containing the amino
acid tryptophan.
⩥ Organic compounds must meet 2 criteria in order to be considered a
vitamin:. Answer: 1) enough of the compound must be consumed in the
diet to maintain health
2) symptoms of deficiency occur in the absence of the compound,
resulting in declining health, but is restored when the deficiency is
corrected.
⩥ Why do we fortify and enrich our foods?. Answer: During
manufacturing of food, some nutrients are lost.
⩥ Enrichment:. Answer: the process of taking nutrients that were lost in
the milling or processing of the food and adding them back to the final
product
⩥ Fortification. Answer: process of supplementing a product with
additional vitamins that would not normally be in that product (i.e.
putting vitamin D in orange juice or adding vitamins to cereal)
⩥ Vitamins can be classified as:. Answer: fat soluble or water soluble
, ⩥ Fat-soluble vitamins:. Answer: dependent on dietary fat for
absorption. Once absorbed they are stored in adipose tissue and liver.
⩥ Vitamins A, D, E, and K are:. Answer: fat soluble
⩥ Since fat-soluble vitamins are not easily excreted from the body,
excess consumption over time could lead to:. Answer: toxic levels in the
body
⩥ Two forms of Vitamin A:. Answer: Preformed (Retinol, Retinal) and
Provitamin (carotenoids)
⩥ Functions of Preformed vitamin A. Answer: vision, immunity, growth
development, disease prevention
⩥ Functions of Provitamin A. Answer: precursors, antioxidants
⩥ Deficiencies of Preformed Vitamin A. Answer: night blindness,
Xeropthalmia
⩥ Xeropthalmia:. Answer: occurs when mucus isn't developing and
blindness sets in
⩥ Deficiencies of Provitamin A. Answer: Macular Degeneration
