36 Questions
Which vitamins are not stored in appreciable amounts in the body, except for one exception?
Vitamin C
Which cooking methods are considered best for preserving the fragile water-soluble vitamins?
Steaming, stir-frying, and microwaving
What is the primary function of Thiamin in the body?
Energy metabolism coenzyme
Which process has helped eliminate most overt deficiencies of B vitamins and vitamin C in the United States?
Food fortification
What is the major role of B vitamins in the body?
Acting as coenzymes in energy metabolism
Which vitamin is part of the coenzyme thiamin pyrophosphate (TPP) involved in glucose catabolism?
Thiamin (Vitamin B1)
Which vitamin is essential for RNA and DNA synthesis, protein synthesis, and neurotransmitter regulation?
Thiamin (Vitamin B1)
Which vitamin is fragile and requires specific care during cooking to prevent degradation?
Vitamin C
What is the Recommended Dietary Allowance (RDA) of Vitamin B6 for men aged 51 and older?
1.7 mg/day
Which food source is NOT mentioned as a primary source of Vitamin B6?
Fresh vegetables
What are symptoms of Vitamin B6 toxicity?
Upset stomach
Which condition results from Folate deficiency?
Megaloblastic anemia
What is the role of Folate in the body?
Essential for red blood cell synthesis
What percentage of the U.S. population may have insufficient folate stores?
10%
Which symptom is NOT associated with Vitamin B6 deficiency?
Vision problems
How might a diet rich in folate potentially benefit health?
Reduced cancer risk
What are the symptoms of vitamin B12 deficiency anemia?
Reopening of wounds and diarrhea
Which vitamin is needed for collagen synthesis and enhancing the absorption of nonheme iron from plant foods?
Vitamin C
What can excessive intake of vitamin C lead to?
Hemochromatosis
Which of the following is a function of choline?
Helps metabolize homocysteine
What are the major food sources of choline?
Milk, liver, egg yolk, and peanuts
Which vitamin deficiency may result in GI distress and free radical damage?
Vitamin C
What autoimmune disorder leads to vitamin B12 deficiency anemia?
Pernicious anemia
What does vitamin C help synthesize besides vital cell compounds?
Collagen
What are the symptoms of thiamin deficiency that include profound muscle weakness and nerve destruction?
Mental confusion and staggering
Which syndrome is alcohol-induced and presents with mental confusion, staggering, and constant rapid eye movements?
Wernicke-Korsakoff Syndrome
What are the symptoms of riboflavin deficiency that include glossitis, angular stomatitis, cheilosis, and seborrheic dermatitis?
Muscle weakness and nerve destruction
Which vitamin functions as a co-enzyme in energy metabolism, supporting oxidation-reduction reactions, the citric acid cycle (CAC), and beta-oxidation?
Vitamin B2
What is the primary function of biotin in the body?
Amino acid synthesis
Which of the following food sources is rich in biotin?
Liver
How is biotin absorption affected by consuming raw egg whites?
Reduced absorption
What is the Adequate Intake (AI) level of biotin for adult men and women?
30 μg/day
What is the primary active coenzyme form of Vitamin B6?
Pyridoxal phosphate (PLP)
Which of the following is NOT supported by Vitamin B6 as a coenzyme?
Fatty acid synthesis
In which organ are pyridoxal (PL), pyridoxine (PN), and pyridoxamine (PM) converted to PLP?
Liver
What is a rare occurrence related to both biotin deficiency and toxicity?
Both deficiency and toxicity are rare
Test your knowledge on the learning objectives of identifying major food sources and symptoms of deficiencies for B vitamins and vitamin C in Human Nutrition (FCSC-332B) with Dr. M. Johnson for the Spring 2024 semester.
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