Question:
Lithocysts characteristically contain _______.
Lithocysts characteristically contain _______.
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Think of the mineral commonly deposited in chalk and limestone, forming the cystolith body.
Updated On: Jul 4, 2026
- Calcium carbonate
- Sodium sulphate
- Ammonium phosphate
- Magnesium oxide
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The Correct Option is A
Solution and Explanation
Step 1: Lithocysts are specialised, often enlarged epidermal cells found in plants such as Ficus and Cannabis.
Step 2: Each lithocyst contains a stalked, mineralised outgrowth of the cell wall called a cystolith, which is composed mainly of calcium carbonate deposited on a cellulose stalk.
Step 3: The other salts listed, sodium sulphate, ammonium phosphate and magnesium oxide, are not what forms a cystolith, so calcium carbonate is correct.
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