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NUSC 1165 Exam 3 Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed $10.49   Add to cart

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NUSC 1165 Exam 3 Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed

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Are most vitamin deficiencies reversible with increased intake of the vitamin? -:- yes, if you increase them in your diet Name the water-soluble vitamins. -:- B vitamins and vitamin C Where are most vitamins absorbed in the GI tract? -:- in the small intestine Describe the difference betwe...

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  • September 4, 2024
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NUSC 1165 Exam 3 Questions & 100%
Correct Answers- Latest Test | Graded A+ |
Passed
Are most vitamin deficiencies reversible with increased intake of the vitamin?


✓ -:- yes, if you increase them in your diet




Name the water-soluble vitamins.


✓ -:- B vitamins and vitamin C




Where are most vitamins absorbed in the GI tract?


✓ -:- in the small intestine




Describe the difference between fortification and enrichment.


✓ -:- enrichment- nutrients that were lost during food processing have been added

back

fortification- vitamins/minerals have been added to a food that were not originally in the

food




What B-vitamins affect homocysteine levels and why is this important?




1|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

✓ -:- vitamins B12 and B6, important because high levels can cause complications such

as heart disease, stroke, dementia, and more




What are thiaminases and how can they be absorbed?


✓ -:- enzymes that metabolize or break down thiamine into 2 molecular parts.

absorbed by the small intestine through active transport at nutritional doses




What disease does thiamin deficiency cause?


✓ -:- beriberi




What is caused by niacin deficiency and how have rates of deficiency been reduced in the

US?


✓ -:- pellagra; deficiency rates reduced by proper diets




What is pellagra? Describe the 4D's of pellagra.


✓ -:- a deficiency caused by lack of niacin or vitamin B3, 4D's are dementia, diarrhea,

dermatitis, and death




How does nicotinic acid affect blood LDL and triglyceride concentrations?




2|Page | Grade A+| 2024/2025

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

✓ -:- decreased LDL ("bad") cholesterol, increased HDL ("good") cholesterol, and

lowered triglycerides.




Which vitamin can be formed from tryptophan?


✓ -:- niacin




How is vitamin B6 involved in protein metabolism?


✓ -:- it helps regulate the balance of amino acids in the body




How is biotin bioavailability affected by raw egg consumption?


✓ -:- extended consumption of raw eggs can cause biotin deficiency because avidin

present in egg white tightly binds biotin thus making biotin unavailable for intestinal

absorption




What impact has fortification with folic acid on deficiency? How has this affected newborn

infants?


✓ -:- folic acid must be added to enriched grain products (such as bread, pasta, rice,

and cereal) which has been profound in reducing the rates of neural tube defects.




Why is intrinsic factor important for preventing pernicious anemia?



3|Page | Grade A+| 2024/2025

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