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NSC Chapter 9 (100+ Qs) – Vitamins, Minerals, Alcohol Metabolism, Micronutrient Deficiency | 2025/2026 Exam Review

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This document contains over 100 accurate, exam-ready multiple-choice questions and answers for NSC Chapter 9, created for the 2025/2026 academic year. It offers a comprehensive review of human nutrition and metabolism with a focus on micronutrient functions, vitamin and mineral deficiencies, antioxidant roles, and the biochemistry of alcohol metabolism. The vitamin section covers fat-soluble (A, D, E, K) and water-soluble vitamins (C, B12, B6, folate), their food sources, active forms (e.g., retinoic acid, alpha-tocopherol), and clinical effects of both deficiency and toxicity (e.g., rickets, pellagra, scurvy, spina bifida). Essential minerals like calcium, phosphorus, magnesium, selenium, iron, iodine, and fluoride are reviewed with emphasis on absorption, bioavailability, and hormonal regulation (e.g., calcitonin, parathyroid hormone). A substantial portion also addresses alcohol metabolism, including enzymes (alcohol dehydrogenase, acetaldehyde dehydrogenase), BAC levels, ALD progression (fatty liver, hepatitis, cirrhosis), and the effects of acetaldehyde toxicity. Students are tested on the impact of alcohol on nutrient absorption, especially B vitamins, and how lifestyle, sex, and medications influence alcohol processing. Ideal for: Nutrition science students taking NSC or health science courses Pre-med, nursing, or allied health students reviewing biochemistry and clinical nutrition Students preparing for midterms or finals in vitamins, minerals, or alcohol metabolism units Keywords: vitamin A toxicity vitamin D deficiency vitamin E antioxidant vitamin K clotting vitamin C scurvy folate and spina bifida iron absorption calcium metabolism iodine deficiency alcohol metabolism acetaldehyde fermentation BAC levels magnesium deficiency chromium insulin micronutrient RDA NSC Chapter 9 2025 exam questions nutrition science

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November 27, 2025
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NSC Chapter 9 2025/2026 Exam
Questions with 100% Correct Answers |
Latest Update



Which of the following condition results in sensitivity to high vitamin D

intake? - 🧠 ANSWER ✔✔hyperparathyroidism


Vitamin B12 is found in animal based foods and requires intrinsic factor for

absorption. - 🧠 ANSWER ✔✔true


what is a function of vitamin c - 🧠 ANSWER ✔✔disable free radicals


what protein does vitamin k modify - 🧠 ANSWER ✔✔osteocalcin


β-carotene is a source of: - 🧠 ANSWER ✔✔vitamin a

,what is choline - 🧠 ANSWER ✔✔An essential water-soluble substance that

has a role in homocysteine metabolism


which of the following statements is TRUE - 🧠 ANSWER ✔✔Beta-carotene

can be converted into retinoids.


what is a consequence of folate deficiency - 🧠 ANSWER ✔✔spina bifida


Vitamin ______ acts as an antioxidant and is found in high amounts in the

lungs. - 🧠 ANSWER ✔✔E


Vitamin C deficiencies result in bleeding gums and is a vitamin that is

needed in higher doses for smokers. - 🧠 ANSWER ✔✔true


Fat-soluble vitamins are more likely than water-soluble vitamins to be toxic

if consumed in excess. - 🧠 ANSWER ✔✔true


what does vitamin D derive from - 🧠 ANSWER ✔✔cholesterol


what is a function of folate - 🧠 ANSWER ✔✔aid in cell specialization


Older adults may need to be concerned about which nutrient related to

decreased production of stomach HCl? - 🧠 ANSWER ✔✔vitamin b12

, what is the active form of vitamin D in the human body - 🧠 ANSWER

✔✔vitamin d2


ergocalciferol

vitamin d3

ALL ARE CORRECT

TRUE or FALSE: Because vitamin A is a fat-soluble vitamin, toxicity is

common. - 🧠 ANSWER ✔✔false


What cancer does vitamin A supplementation increase the risk of? - 🧠

ANSWER ✔✔lung cancer


Which of the following is NOT associated with higher intakes vitamin D? - 🧠

ANSWER ✔✔decrease in insulin secretion


Vitamin ________ acts as an antioxidant and may play a role in lowering

LDL (bad) cholesterol. - 🧠 ANSWER ✔✔E


Which of the following vitamins aids in the absorption of the mineral iron? -

🧠 ANSWER ✔✔vitamin C


Which of the following is the least likely to have a vitamin D deficiency? - 🧠

ANSWER ✔✔A caucasian male living in south California

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