KINE 4020 Final Exam Questions with Correct
Answers
What are the active forms of vitamin A? (3) - Correct Answer retinol, retinal, retinoic acid
Primary functions of Vitamin A? (5) - Correct Answer - synthesis of rhodopsin
- sperm production
- contributes to bone development
- assists in cell differentiation
- maintenance of healthy immune function
What is Vitamin A's role in vision? - Correct Answer deficiency of Vit. A = night blindness
opsin & cis-retinal constantly separate
What are the 2 configurations of retinal and what configuration is correct after light hits the eye? -
Correct Answer Cis-config
Trans-config (after light hits eye)
What is a sign you're deficient in Vitamin A? - Correct Answer Xeropthalmia (dry eye)
What are 2 main forms of Vitamin D? - Correct Answer D2 (ergocalciferol) and D3 (cholecalciferol)
Which lipoprotein is Vitamin D primarily incorporated in? - Correct Answer Chylomicrons
Primary functions of Vitamin D? (3) - Correct Answer Regulates calcium level in the blood
Maintains bone health
Assists cell differentiation
Where can you get D2 and D3 from respectively? - Correct Answer Found in plant foods and made in
skin w/exposure to UVB light from sun
How is D3 activated? - Correct Answer Needs to go through 2 hydroxylation's
1) in liver adds on C-25
, 2) in kidney adds on C-1
What is the active form of D3? - Correct Answer calcitriol
Symptoms of deficiency in Vitamin D? - Correct Answer abnormal bone growth and repair
- rickets in children (bendy bones)
- osteomalacia in adults (soft bone)
What are the 2 forms of Vitamin E? - Correct Answer 1. tocopherol
2. tocotrienol (unsaturated form)
Primary functions of Vitamin E? (3) - Correct Answer acts as an antioxidant
enhances immune function
required for nerve cell development
What do tocopherols quench? - Correct Answer Tocopherols are good quenchers of free radicals;
serve as antioxidants by stabilizing polyunsaturated lipids has capacity to donate electron
What happens when you ingest too much Vitamin E? - Correct Answer Will donate electron to
molecule that doesn't need it
What are some signs of toxicity of Vitamin E? - Correct Answer Hemolytic anemia, nerve impairment,
muscle, and immune function
What are some signs of deficiency of Vitamin E? - Correct Answer Rare, normally linked to
malabsorption due to pancreatic lipase deficiency, hepatobiliary diseases, and genetic defects.
- MSK pain, weakness, hemolytic anemia
What are the active forms of Vitamin K? (3) - Correct Answer menadione, menaquinone,
phylloquinone
Which active forms of Vitamin K are naturally occurring and synthetic respectively? - Correct Answer
Naturally occurring - K1, MK7
Answers
What are the active forms of vitamin A? (3) - Correct Answer retinol, retinal, retinoic acid
Primary functions of Vitamin A? (5) - Correct Answer - synthesis of rhodopsin
- sperm production
- contributes to bone development
- assists in cell differentiation
- maintenance of healthy immune function
What is Vitamin A's role in vision? - Correct Answer deficiency of Vit. A = night blindness
opsin & cis-retinal constantly separate
What are the 2 configurations of retinal and what configuration is correct after light hits the eye? -
Correct Answer Cis-config
Trans-config (after light hits eye)
What is a sign you're deficient in Vitamin A? - Correct Answer Xeropthalmia (dry eye)
What are 2 main forms of Vitamin D? - Correct Answer D2 (ergocalciferol) and D3 (cholecalciferol)
Which lipoprotein is Vitamin D primarily incorporated in? - Correct Answer Chylomicrons
Primary functions of Vitamin D? (3) - Correct Answer Regulates calcium level in the blood
Maintains bone health
Assists cell differentiation
Where can you get D2 and D3 from respectively? - Correct Answer Found in plant foods and made in
skin w/exposure to UVB light from sun
How is D3 activated? - Correct Answer Needs to go through 2 hydroxylation's
1) in liver adds on C-25
, 2) in kidney adds on C-1
What is the active form of D3? - Correct Answer calcitriol
Symptoms of deficiency in Vitamin D? - Correct Answer abnormal bone growth and repair
- rickets in children (bendy bones)
- osteomalacia in adults (soft bone)
What are the 2 forms of Vitamin E? - Correct Answer 1. tocopherol
2. tocotrienol (unsaturated form)
Primary functions of Vitamin E? (3) - Correct Answer acts as an antioxidant
enhances immune function
required for nerve cell development
What do tocopherols quench? - Correct Answer Tocopherols are good quenchers of free radicals;
serve as antioxidants by stabilizing polyunsaturated lipids has capacity to donate electron
What happens when you ingest too much Vitamin E? - Correct Answer Will donate electron to
molecule that doesn't need it
What are some signs of toxicity of Vitamin E? - Correct Answer Hemolytic anemia, nerve impairment,
muscle, and immune function
What are some signs of deficiency of Vitamin E? - Correct Answer Rare, normally linked to
malabsorption due to pancreatic lipase deficiency, hepatobiliary diseases, and genetic defects.
- MSK pain, weakness, hemolytic anemia
What are the active forms of Vitamin K? (3) - Correct Answer menadione, menaquinone,
phylloquinone
Which active forms of Vitamin K are naturally occurring and synthetic respectively? - Correct Answer
Naturally occurring - K1, MK7
