27 Questions
How many vitamins are classified as fat soluble?
4
What is the main reason vitamins cannot be synthesized by the body?
They cannot be used as an energy source.
Which vitamins are classified as water soluble?
Vitamins C, Folate, and the B group
What role do many of the B vitamins play in the body?
Synthesis of co-enzymes
Which vitamin is especially susceptible to heat and alkalinity?
Vitamin B1
What is the deficiency syndrome associated with a lack of Vitamin B1?
Beriberi
Which vitamin fulfills its role in metabolism as the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD)?
Vitamin B2
What are the main results of pellagra, a serious deficiency of niacin (Vitamin B3)?
Diarrhea, dermatitis, and death
Which vitamin is known as niacin and nicotinic acid?
Vitamin B3
What is the active form of Vitamin B7 (Biotin)?
Inositol Hexaniacinate
Which vitamin is composed of a substituted pyridine and thiazole ring?
Vitamin B1
What is the main function of vitamins in human metabolism?
Support enzymatic functions
How many known water-soluble vitamins are there?
9
What is the primary function of many B vitamins in the body?
Act as co-enzymes to help breakdown glucose for energy
What are the common names for Vitamin B1, B2, B6, B12, and folate?
Thiamin, Riboflavin, Pyridoxine, Cyanocobalamin, Folic acid
What is the classification of vitamins based on solubility?
Fat soluble & water soluble
What are the preferred methods for cooking vegetables to minimize cooking losses of B complex vitamins?
Steaming, stir-fry, and microwave
What are the symptoms of Riboflavin deficiency?
Personality changes, cheilosis, glossitis
What are the two types of Niacin and which one is highly toxic in large doses?
Niacinamide (Nicotinamide) and Niacin (Nicotinic Acid); Niacin (Nicotinic Acid) is highly toxic in large doses
What are the main results of pellagra, a serious deficiency of niacin (Vitamin B3)?
Diarrhea, dermatitis, dementia, and death
What is the coenzyme function of Vitamin B1 (Thiamine) in glucose metabolism?
Releases energy from carbohydrate
How does Vitamin B1 (Thiamine) function in energy metabolism?
Helps form Acetyl Co A from pyruvate
What are the deficiency symptoms associated with a lack of Vitamin B1 (Thiamine)?
Beriberi: poor appetite, heart enlargement, muscle spasms, and memory loss
What is Vitamin B2's (Riboflavin) role in metabolism?
Fulfills its role in metabolism as the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD)
What are the functions of Niacin (Vitamin B3) in the body?
Acts as a coenzyme in oxidation-reduction reactions, helps metabolize glucose, and participates in over 200 metabolic reactions
What are the functions of Biotin (Vitamin B7) in the body?
Acts as a growth factor, coenzyme R, and participates in metabolic reactions
How is Vitamin B1 (Thiamine) destroyed?
By alkaline and heat
Test your knowledge about the definition and functions of vitamins with this quiz. Learn about the essential role of vitamins in human metabolism and their importance for health, growth, and reproduction.
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