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Questions and Answers
What gives rhubarb its characteristic gritty taste?
What gives rhubarb its characteristic gritty taste?
- Medullary ray cells
- Vessels
- Starch granules
- Calcium oxalate (correct)
What is the botanical origin of Rhubarb?
What is the botanical origin of Rhubarb?
- Rheum palmatum or R. officinale (correct)
- Rheum hybrids
- Rheum rhaponticum
- Rheum with outer bark
What color do medullary ray cells give with a solution of caustic alkali?
What color do medullary ray cells give with a solution of caustic alkali?
- Green
- Brown
- Yellow
- Reddish-pink (correct)
Which family does Rhubarb belong to?
Which family does Rhubarb belong to?
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What is the main purgative compound found in Rhubarb?
What is the main purgative compound found in Rhubarb?
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Study Notes
Rhubarb Characteristics
- Rhubarb's characteristic gritty taste comes from the high concentration of calcium oxalate crystals in its cells.
Botanical Origin of Rhubarb
- Rhubarb is a perennial plant that originates from the genus Rheum in the family Polygonaceae.
Medullary Ray Cells
- Medullary ray cells in Rhubarb give a red color when treated with a solution of caustic alkali.
Classification of Rhubarb
- Rhubarb belongs to the family Polygonaceae.
Purgative Properties of Rhubarb
- The main purgative compound found in Rhubarb is anthraquinone derivatives, which contribute to its medicinal properties.
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