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Questions and Answers
What is the active form of Vitamin B1 (Thiamin)?
What is the active form of Vitamin B1 (Thiamin)?
- Niacinamide
- Thiamin pyrophosphate (TPP) (correct)
- Flavin adenine dinucleotide (FAD)
- Flavin mononucleotide (FMN)
Which of the following is a symptom of dry beriberi?
Which of the following is a symptom of dry beriberi?
- Inflammation of the tongue
- Edema
- Photophobia
- Muscle wasting (correct)
What role do FMN and FAD play in the body?
What role do FMN and FAD play in the body?
- They act as co-enzymes in oxidative decarboxylation.
- They are primary sources of energy for the body.
- They assist in vitamin B6 metabolism.
- They function as co-enzymes in oxidation-reduction reactions. (correct)
Which of the following describes a consequence of thiamine deficiency?
Which of the following describes a consequence of thiamine deficiency?
What is a common symptom of riboflavin deficiency?
What is a common symptom of riboflavin deficiency?
Flashcards
Thiamin deficiency
Thiamin deficiency
A condition caused by a lack of thiamin (vitamin B1), leading to impaired carbohydrate metabolism, reduced energy production, and nerve damage.
Active form of Thiamin
Active form of Thiamin
Thiamin pyrophosphate (TPP) is the biologically active form of vitamin B1 and is a critical coenzyme in carbohydrate metabolism and nerve function.
Vitamin B2 Active Forms
Vitamin B2 Active Forms
Flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) act as coenzymes in redox reactions within the body, supporting carbohydrate and protein metabolism.
Riboflavin deficiency symptoms
Riboflavin deficiency symptoms
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Beriberi types
Beriberi types
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Study Notes
Vitamin B1 (Thiamin)
- Active form: Thiamin pyrophosphate (TPP)
- Function:
- TPP acts as a coenzyme in oxidative decarboxylation reactions in carbohydrate metabolism.
- Crucial for nerve conduction.
- Deficiency (Beriberi):
- Reduced TPP levels
- Impaired carbohydrate metabolism
- Decreased energy production
- Impaired nervous system function
- Two types:
- Dry Beriberi: Peripheral neuritis, indigestion, constipation, muscle wasting, and hyperesthesia
- Wet Beriberi: Heart failure, edema
Vitamin B2 (Riboflavin)
- Active forms: Flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD)
- Function:
- FMN and FAD act as coenzymes in oxidation-reduction reactions, specifically carrying hydrogen in carbohydrate and protein metabolism.
- Deficiency:
- Not life-threatening
- Characterized by:
- Ocular disturbance
- Cheilosis
- Glossitis
- Photophobia
- Vascularization of the cornea
- Fissuring at mouth corners
- Inflammation of the tongue, smooth and purplish
- Dermatitis at nasolabial region
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Description
Test your knowledge on the functions, deficiencies, and importance of Vitamin B1 (Thiamin) and Vitamin B2 (Riboflavin). This quiz covers key aspects such as roles in metabolism, symptoms of deficiency, and classification of conditions like Beriberi. Challenge yourself to see how well you understand these essential vitamins!
