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Questions and Answers
What is the general structure of flavonoids?
What is the general structure of flavonoids?
- 15-carbon skeleton, containing 2 benzene rings connected by a 3-carbon linking chain (correct)
- 20-carbon skeleton, containing 1 benzene ring connected by a 2-carbon linking chain
- 12-carbon skeleton, containing 4 benzene rings connected by a 2-carbon linking chain
- 10-carbon skeleton, containing 3 benzene rings connected by a 4-carbon linking chain
In which natural products are flavonoids commonly found?
In which natural products are flavonoids commonly found?
- Meat, dairy products, and grains
- Seafood and seaweed
- Alcohol and processed foods
- Fruits, vegetables, nuts, seeds, stems, flowers, and tea (correct)
Which cellular receptor sites do flavonoids bind to?
Which cellular receptor sites do flavonoids bind to?
- Cytoplasmic receptor sites
- Only to specific cellular receptor sites
- Nuclear receptor sites
- A range of cellular receptor sites (correct)
What is the responsible for the color of flowers and fruits?
What is the responsible for the color of flowers and fruits?
What color does AlCl3 turn when in contact with flavonoids?
What color does AlCl3 turn when in contact with flavonoids?
Flashcards
Flavonoid structure
Flavonoid structure
Flavonoids have a 15-carbon skeleton with 2 benzene rings connected by a 3-carbon chain.
Flavonoid sources
Flavonoid sources
Flavonoids are abundant in fruits, vegetables, nuts, seeds, stems, flowers, and tea.
Flavonoid binding
Flavonoid binding
Flavonoids can bind to various cellular receptor sites.
Flavonoid colors
Flavonoid colors
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AlCl3 color with flavonoids
AlCl3 color with flavonoids
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Study Notes
Flavonoids Structure and Occurrence
- Flavonoids have a general structure of 15 carbon atoms, arranged in a specific pattern of three six-membered rings.
- Flavonoids are commonly found in natural products like fruits, vegetables, and plant-based foods.
Flavonoids and Cellular Receptors
- Flavonoids bind to cellular receptor sites, influencing various biological processes.
Pigmentation and Color
- Flavonoids are responsible for the color of flowers and fruits.
- AlCl3 (aluminum chloride) turns yellow when in contact with flavonoids, indicating the presence of these compounds.
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