What is 'Flavin adenine dinucleotide'?
Correct answer: B. Coenzyme
- A. Catalyst
- B. Coenzyme
- C. Cofactor
- D. Enzyme
Explanation
Flavin adenine dinucleotide (FAD) is a coenzyme, a non-protein molecule that assists enzymes in catalyzing various biochemical reactions. FAD is a derivative of riboflavin (vitamin B2) and plays a crucial role in energy metabolism, particularly in the electron transport chain.FAD can exist in two forms:1. FAD (oxidized form)2. FADH2 (reduced form)FAD acts as an electron carrier, accepting and donating electrons during metabolic reactions, such as:- Cellular respiration- Fatty acid oxidation- Citric acid cycle
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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