FSN 202 Final Exam Review UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What vitamins are considered fat-soluble? - CORRECT ANSWER The fat-soluble vitamins are
A, D, E, and K.
What vitamins are considered water-soluble? - CORRECT ANSWER The water-soluble
vitamins include the B vitamins and vitamin C.
How does absorption differ among the fat-soluble and water-soluble vitamins? - CORRECT
ANSWER Fat-soluble vitamins are absorbed with dietary fat and stored in body tissues, while
water-soluble vitamins are absorbed directly into the bloodstream and are not stored.
How are large doses of certain fat-soluble vitamins different than water-soluble vitamins? -
CORRECT ANSWER Large doses of fat-soluble vitamins can accumulate in the body and lead
to toxicity, while excess water-soluble vitamins are usually excreted in urine.
What is the difference between provitamin A and preformed vitamin A? - CORRECT
ANSWER Provitamin A (like beta-carotene) is a precursor that the body converts into active
vitamin A, while preformed vitamin A (like retinol) is already in its active form.
What kind of foods can you find Vitamin A? - CORRECT ANSWER Vitamin A can be found in
foods like liver, fish, dairy products, and orange or yellow fruits and vegetables such as carrots and
sweet potatoes.
What roles does vitamin A play in the body? - CORRECT ANSWER Vitamin A is essential for
growth and development, cell differentiation, vision, and immune function.
What are the functions of carotenoids? - CORRECT ANSWER Carotenoids act as antioxidants,
support immune function, and can be converted into vitamin A in the body.
What are some vitamin A deficiencies? - CORRECT ANSWER Vitamin A deficiencies can lead
to night blindness, dry skin, and increased susceptibility to infections.
, What happens with too much vitamin A? - CORRECT ANSWER Excessive vitamin A intake
can lead to toxicity, causing symptoms like nausea, headache, dizziness, and even liver damage.
What are the best food sources of vitamin D? - CORRECT ANSWER The best food sources of
vitamin D include fatty fish, fortified dairy products, and egg yolks.
How does vitamin D3 form in the skin? - CORRECT ANSWER Vitamin D3 is synthesized in
the skin when UVB rays from sunlight convert 7-dehydrocholesterol to previtamin D3, which is then
converted to active vitamin D.
What is the most active form of vitamin D and what are some of its important functions? - CORRECT
ANSWER The most active form of vitamin D is calcitriol, which regulates calcium and
phosphate metabolism and is important for bone health.
What are some common vitamin D deficiencies? - CORRECT ANSWER Common vitamin D
deficiencies can lead to rickets in children and osteomalacia in adults.
Why are those who live in northern latitudes at risk of vitamin D deficiency? - CORRECT
ANSWER People in northern latitudes may have limited sun exposure, especially in winter
months, reducing their ability to synthesize vitamin D.
What type of food is usually fortified with vitamin D? - CORRECT ANSWER Foods like milk,
orange juice, and breakfast cereals are commonly fortified with vitamin D.
What can occur due to toxicity of vitamin D? - CORRECT ANSWER Vitamin D toxicity can
lead to hypercalcemia, resulting in nausea, weakness, and kidney damage.
What are good food sources of vitamin E? - CORRECT ANSWER Good food sources of
vitamin E include nuts, seeds, spinach, and vegetable oils.
What are free radicals and how does vitamin E affect them? - CORRECT ANSWER Free
radicals are unstable molecules that can damage cells; vitamin E acts as an antioxidant, neutralizing
free radicals.
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What vitamins are considered fat-soluble? - CORRECT ANSWER The fat-soluble vitamins are
A, D, E, and K.
What vitamins are considered water-soluble? - CORRECT ANSWER The water-soluble
vitamins include the B vitamins and vitamin C.
How does absorption differ among the fat-soluble and water-soluble vitamins? - CORRECT
ANSWER Fat-soluble vitamins are absorbed with dietary fat and stored in body tissues, while
water-soluble vitamins are absorbed directly into the bloodstream and are not stored.
How are large doses of certain fat-soluble vitamins different than water-soluble vitamins? -
CORRECT ANSWER Large doses of fat-soluble vitamins can accumulate in the body and lead
to toxicity, while excess water-soluble vitamins are usually excreted in urine.
What is the difference between provitamin A and preformed vitamin A? - CORRECT
ANSWER Provitamin A (like beta-carotene) is a precursor that the body converts into active
vitamin A, while preformed vitamin A (like retinol) is already in its active form.
What kind of foods can you find Vitamin A? - CORRECT ANSWER Vitamin A can be found in
foods like liver, fish, dairy products, and orange or yellow fruits and vegetables such as carrots and
sweet potatoes.
What roles does vitamin A play in the body? - CORRECT ANSWER Vitamin A is essential for
growth and development, cell differentiation, vision, and immune function.
What are the functions of carotenoids? - CORRECT ANSWER Carotenoids act as antioxidants,
support immune function, and can be converted into vitamin A in the body.
What are some vitamin A deficiencies? - CORRECT ANSWER Vitamin A deficiencies can lead
to night blindness, dry skin, and increased susceptibility to infections.
, What happens with too much vitamin A? - CORRECT ANSWER Excessive vitamin A intake
can lead to toxicity, causing symptoms like nausea, headache, dizziness, and even liver damage.
What are the best food sources of vitamin D? - CORRECT ANSWER The best food sources of
vitamin D include fatty fish, fortified dairy products, and egg yolks.
How does vitamin D3 form in the skin? - CORRECT ANSWER Vitamin D3 is synthesized in
the skin when UVB rays from sunlight convert 7-dehydrocholesterol to previtamin D3, which is then
converted to active vitamin D.
What is the most active form of vitamin D and what are some of its important functions? - CORRECT
ANSWER The most active form of vitamin D is calcitriol, which regulates calcium and
phosphate metabolism and is important for bone health.
What are some common vitamin D deficiencies? - CORRECT ANSWER Common vitamin D
deficiencies can lead to rickets in children and osteomalacia in adults.
Why are those who live in northern latitudes at risk of vitamin D deficiency? - CORRECT
ANSWER People in northern latitudes may have limited sun exposure, especially in winter
months, reducing their ability to synthesize vitamin D.
What type of food is usually fortified with vitamin D? - CORRECT ANSWER Foods like milk,
orange juice, and breakfast cereals are commonly fortified with vitamin D.
What can occur due to toxicity of vitamin D? - CORRECT ANSWER Vitamin D toxicity can
lead to hypercalcemia, resulting in nausea, weakness, and kidney damage.
What are good food sources of vitamin E? - CORRECT ANSWER Good food sources of
vitamin E include nuts, seeds, spinach, and vegetable oils.
What are free radicals and how does vitamin E affect them? - CORRECT ANSWER Free
radicals are unstable molecules that can damage cells; vitamin E acts as an antioxidant, neutralizing
free radicals.
