Vitamin B6 and Coenzyme A

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Questions and Answers

What is a result of a severe deficiency of thiamine?

Retarded growth

Dermatitis

Loss of appetite

Beriberi (correct)

What is the main function of riboflavin in the body?

Energy production

Support of sight function (correct)

Influencing sacharide metabolism

Curing of skin diseases

Which vitamin is involved in oxidation-reduction reactions?

Thiamine

Pantothenic Acid

Niacin (correct)

Riboflavin

What is the effect of a deficiency of pantothenic acid?

Fatigue Signup and view all the answers

What is a common source of thiamine?

All of the above Signup and view all the answers

Which vitamin is light sensitive?

Riboflavin Signup and view all the answers

What is a symptom of pyridoxine deficiency?

Dermatitis Signup and view all the answers

What is the function of vitamin B12 in the body?

Formation of red blood cells Signup and view all the answers

What is the result of vitamin C deficiency?

Scurvy Signup and view all the answers

What is the source of vitamin A?

Liver and beta-carotenes in plants Signup and view all the answers

What is the function of pyridoxal phosphate (PLP)?

Transamination of amino acids Signup and view all the answers

What is the effect of vitamin B12 deficiency on the nervous system?

Nerve damage Signup and view all the answers

What is the role of vitamin C in the body?

Synthesis of collagen Signup and view all the answers

What is the result of excessive vitamin C intake?

Hypervitaminosis Signup and view all the answers

What is the outcome of Thiamine (Vitamin B1) deficiency?

Beriberi Signup and view all the answers

What are the functions of Vitamin E?

Antioxidants and bone formation Signup and view all the answers

Which of the following is a characteristic of Fat-Soluble Vitamins?

Stored in the body Signup and view all the answers

What is the outcome of Vitamin D deficiency?

Rickets Signup and view all the answers

Why are vitamins essential for our health?

They are essential for normal health and growth Signup and view all the answers

What is the function of Thiamine Pyrophosphate (TPP)?

Coenzyme in the decarboxylation of α-keto carboxylic acids Signup and view all the answers

What is the difference between Fat-Soluble and Water-Soluble Vitamins?

Fat-soluble vitamins are stored in the body, while water-soluble vitamins are not Signup and view all the answers

What are the benefits of vitamins?

Slower aging, improve immunity, and prevent illnesses Signup and view all the answers

Study Notes

Coenzyme A

Necessary for formation of glycogen, fatty acids, and steroid hormones
Reduces stress, prevents tiredness
Sources: whole grains, vegetables, eggs, liver, heart, yeast

Pyridoxine (Vitamin B6)

Converted to coenzyme pyridoxal phosphate (PLP) which is required in transamination of amino acids and decarboxylation of carboxylic acids
Deficiency leads to dermatitis, fatigue, and anemia
Sources: meat, fish, liver, vegetables, cereals, yolk, legumes
Functions: amino acid and protein metabolism, cure of anemia, formation of red blood cells

Cobalamin (Vitamin B12)

Consists of four pyrrole rings with a Co2+ ion
Functions as coenzyme for enzymes that transfer methyl groups and produce red blood cells
Deficiency leads to pernicious anemia and nerve damage
Sources: dairy products, meat, poultry, sea products
Functions: formation of red blood cells, maintenance of neuro tissue, cure of neuro diseases and anemia

Ascorbic Acid (Vitamin C)

Required for collagen synthesis
Deficiency leads to weakened connective tissue, slow-healing wounds, and anemia
Sources: Indian gooseberries, blueberries, citrus fruits, tomatoes, broccoli, red and green vegetables
Functions: collagen synthesis, infection resistance, cure of cuts

Vitamin A

Obtained from meats and beta-carotenes in plants
Functions: influences saccharide metabolism, helps against tiredness
Sources: meats and beta-carotenes in plants

Thiamine (Vitamin B1)

Part of the coenzyme thiamine pyrophosphate (TPP)
Deficiency leads to beriberi (fatigue, weight loss, and nerve degeneration)
Sources: yeasts, cereals, rice, liver, legumes
Functions: influences saccharide metabolism, helps against tiredness

Riboflavin (Vitamin B2)

Part of the coenzymes flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN)
Needed for good vision and healthy skin
Sources: cereals, eggs, vegetables, dairy products, yeast, liver
Functions: saccharide and lipid metabolism, curing of skin diseases, support of sight function

Niacin (Vitamin B3)

Part of the coenzyme nicotinamide adenine dinucleotide (NAD+)
Deficiency leads to dermatitis, muscle fatigue, and loss of appetite
Sources: meats, rice, and whole grains
Functions: involved in oxidation-reduction reactions

Pantothenic Acid (Vitamin B5)

Part of coenzyme A needed for energy production
Deficiency leads to fatigue, retarded growth, and anemia
Sources: not specified

Vitamins

Organic molecules with a wide variety of functions
Cofactors for enzymatic reactions
Essential, supplied in the diet
Two distinct types: Fat-soluble (A, D, E, K) and Water-soluble (B-complex, C)
Functions: improve immunity, prevent illnesses, slower aging

Fat-Soluble Vitamins

A, D, E, and K
Soluble in lipids, not in aqueous solutions
Stored in the body
Functions: vision, bone formation, antioxidants, and blood clotting

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Description

Learn about the functions and sources of Vitamin B6 and Coenzyme A, including their roles in preventing tiredness and forming glycogen and fatty acids.