Questions and Answers
What type of underground stem is represented by a ginger rhizome?
Rhizome
Which type of germination involves cotyledons being pushed out of the soil?
Epigeal germination
Which type of root system does a bean seedling have?
Taproot
Which plant structure in epigeal germination grows and pushes the young shoot above the soil?
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Which of the following is NOT an example of an underground storage organ?
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Study Notes
Plant Structures
- A (Onion Bulb) is an example of a Bulb.
- B (Ginger rhizome) is an example of a Rhizome.
- C (Irish potato) is an example of a Tuber.
Germination Types
- Epigeal Germination: cotyledons are pushed out of the soil, and the hypocotyl elongates, forming an arch.
- Hypogeal Germination: cotyledons stay below the soil.
Seedling Development
- In epigeal germination, the epicotyl grows and pushes the young shoot above the soil.
- Tap root is a type of root system.
- Fibrous root is a type of root system.
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