Nutrition and Health Essentials Quiz
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Questions and Answers

Which enzyme is specifically involved in the breakdown of glucose-6-phosphate?

  • Glucose-6-phosphate dehydrogenase (correct)
  • Aldolase
  • Xanthine oxidase
  • Lactate dehydrogenase

Which of the following conditions is associated with a deficiency of Cobalt?

  • Scruvy
  • Pernicious Anemia (correct)
  • Osteomalacia
  • Rickets

What is the primary role of Molybdenum in the human body?

  • Bone formation
  • Vitamin B12 synthesis (correct)
  • Regulation of heart rate
  • Blood clotting

Which of the following conditions is NOT a symptom of Molybdenosis?

<p>Uric acid accumulation (C)</p> Signup and view all the answers

Which mineral deficiency is associated with Keshan disease?

<p>Selenium (D)</p> Signup and view all the answers

What is the RDA of Vitamin C?

<p>60-70 mg (B)</p> Signup and view all the answers

Which condition can result from a deficiency of Fluorine?

<p>Dental caries (A)</p> Signup and view all the answers

Which of the following serves as a cofactor for Superoxide dismutase?

<p>Manganese (D)</p> Signup and view all the answers

What is the main dietary source of Selenium?

<p>Meat &amp; Seafood (C)</p> Signup and view all the answers

Menkes disease is characterized by which plasma copper levels?

<p>Low levels of plasma copper and ceruloplasmin (D)</p> Signup and view all the answers

In Wilson disease, which statement is true?

<p>Copper fails to be excreted in the bile (D)</p> Signup and view all the answers

What is the normal plasma concentration range of Copper?

<p>100-200 mg/dl (B)</p> Signup and view all the answers

Which enzyme requires gluconolactone oxidase for its synthesis?

<p>Vitamin C (A)</p> Signup and view all the answers

Flashcards

Xanthine oxidase

An enzyme involved in purine metabolism that converts hypoxanthine to xanthine and xanthine to uric acid.

Cobalt deficiency diseases

Pernicious anemia, a condition resulting from a deficiency of cobalt affecting vitamin B12 production.

Thyroid hormones synthesis

Iodine is essential for the synthesis of thyroid hormones, which regulate metabolism.

Acrodermatitis enteropathica

A genetic condition caused by zinc deficiency, leading to skin lesions.

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Keshan disease

A disease caused by selenium deficiency that affects the heart muscle.

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RDA of Vitamin C

Recommended dietary allowance for Vitamin C is 60-70 mg.

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RDA of Iodine

Recommended dietary allowance for Iodine is 100-150 micrograms.

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Symptoms of Menkes syndrome

Characterized by mental retardation, vascular defects, seizures, and brittle hair.

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Main dietary source of Selenium

The main dietary source of Selenium is meat and seafood.

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Effect of fluoride on teeth

Fluoride prevents tooth decay by promoting enamel remineralization.

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Deficiency of Fluorine

Deficiency can lead to dental caries (tooth decay).

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Normal Plasma concentration of Copper

Normal levels of Copper in plasma range from 70-150 mg/dl.

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Effects of Vitamin C deficiency

Deficiency leads to lack of hydroxylation of proline and lysine in collagen.

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Study Notes

RDA of Vitamins and Minerals

  • Vitamin C RDA: 40-50 mg
  • Iodine RDA: 100-150 ug

Diagnosis of Mental Retardation

  • A patient with mental retardation, vascular defects, seizures, and brittle hair may have Wilson's disease.

Dietary Sources of Selenium

  • Meat and sea food

Effect of Fluoride on Teeth

  • Prevents tooth decay by promoting enamel remineralization

Enzyme Role in Vitamin C Synthesis

  • Gluconolactone oxidase enzyme is required for the synthesis of Vitamin C.

Deficiency of Fluorine

  • Dental caries is a possible result.

Manganese Cofactor

  • Manganese is a cofactor for superoxide dismutase.

Copper Plasma Concentration

  • Normal plasma copper concentration is 100-200 mg/dL.

Protocollagen Hydroxylation Deficiency

  • A deficiency in Vitamin C can destroy the hydroxylation of proline and lysine residues of protocollagen.

Wilson's Disease

  • In Wilson's disease, copper fails to be excreted in the bile. Copper levels in plasma may DECREASE. Ceruloplasmin level is INCREASED. Intestinal absorption of copper is INCREASED.

Gusten Protein Components

  • Gusten, a protein for taste sensation, contains Zinc.

Menkes Disease

  • Menkes disease is an X-linked disease. High levels of plasma copper and low levels of hepatic copper, and low levels of ceruloplasmin are characteristic.

Molybdenum Enzyme Cofactor

  • Molybdenum is a cofactor for xanthine oxidase, glucose-6-phosphate dehydrogenase, and lactate dehydrogenase.

Cobalt Deficiency Disease

  • Pernicious anemia is associated with cobalt deficiency.

Iodine's Hormone Role

  • Iodine is essential for the synthesis of thyroid hormones.

Molybdenum Disease

  • Molybdenosis may present with symptoms, but not uric acid accumulation.
  • Acrodermatitis enteropathica is associated with copper deficiency.

Keshan Disease

  • Keshan disease is caused by selenium deficiency.

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Description

Test your knowledge on the recommended daily allowances of vitamins and minerals, the diagnosis of mental retardation, and the role of dietary components in health. This quiz also explores diseases related to mineral deficiencies and the biochemical processes involved in nutrient synthesis.

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