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Questions and Answers
What is the primary purpose of a herbarium?
What is the primary purpose of a herbarium?
- To provide a living collection of various plant species.
- To create a chemical preservation method for animal species.
- To preserve dried plant specimens on standard size paper. (correct)
- To cultivate new plant species in controlled environments.
What type of plants are typically found in botanical gardens?
What type of plants are typically found in botanical gardens?
- Collections of hybrids manufactured in laboratories.
- Only endangered species for conservation purposes.
- Different varieties of plants from various parts of the world. (correct)
- Only native species from the local area.
What substance is commonly used for preserving specimens in museums?
What substance is commonly used for preserving specimens in museums?
- Salt water solutions for biological samples.
- Distilled water for its sterilizing properties.
- Formalin with concentrations ranging from 10% to 40%. (correct)
- Ethanol at 70% concentration.
What kind of information is typically found on the label of a herbarium sheet?
What kind of information is typically found on the label of a herbarium sheet?
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What is NOT a feature of botanical gardens?
What is NOT a feature of botanical gardens?
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Study Notes
Herbarium (Preservation method)
- Herbarium involves dried plant specimens that are pressed, treated, and mounted on standard-sized paper sheets measuring 11.5 x 16.5 inches.
- Each sheet includes vital information such as the date and place of collection, detailed classification, plant characteristics, local names, and the collector's name.
- This information is provided on a label (dimensions: 12 cm x 7 cm) located in the lower right corner of the sheet.
Botanical Gardens (Ex situ conservation method)
- Botanical gardens serve as collections of various plant species from around the world, showcasing biodiversity.
- Each plant in the garden is accompanied by a labelled board that provides detailed information about the species.
Museums (Preservation method)
- Museums house collections of preserved plants and animal species for educational and research purposes.
- Preservation typically involves storing specimens in chemical liquids, particularly formalin, which can contain 10% to 40% formaldehyde.
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