Questions with Actual Answers 2026.
characteristics of vitamins - Answer - Complex Structures
- No caloric value
- essential
- needed in very small amounts
- for optimal growth and health
Fat- soluble - Answer - Absorbed like fats (into the lymph, then the blood stream)
- must travel with protein carriers in watery body fluids
- stored in liver or fatty tissues
- not readily excreted
- tend to build up in the tissues
- toxicities are likely from supplements
- occur rarely from food
- needed regularly because the body can draw on its own stores
Water-soluble - Answer - directly into bloodstream
- travel freely in watery fluids
- most are not stored in the body
- readily excreted in the urine
- toxicities are unlikely, but possible with high dose from supplements
, - needed in frequent doses because the body does not store most of them (every 1-3 days)
Major functions of Vitamin C - Answer - Maintaing connective tissue, collage
- antioxidant
cofactor in synthesis
- improves iron absorption
Functions of Vitamin B: Thiamin - Answer cofactor in energy metabolism
Functions of Vitamin B: Riboflavin - Answer Cofactor in energy metabolism
Functions of Folate - Answer Coenzyme in DNA/ RNA synthesis
Functions of B12 - Answer Coenzyme in DNA/ RNA synthesis, RBC synthesis
Functions of Vitamin A - Answer - Activation or deactivation of genes
- cell differentiation
- Immune function
- visual cycle
- cancer prevention
Functions of Vitamin D - Answer - Maintain blood calcium
Functions of Vitamin E - Answer Antioxidant
- protects cells membranes
Functions of Vitamin K - Answer - Blood clotting
- synthesis of bone matrix proteins
Food Sources of Vitamin C - Answer Fruits and Veggies
Food sources of Ribflavin - Answer Milk
Food sources of Niacin - Answer - Protein Foods
- Grains