Plants Mindmap
A mind map on plants
- Created by: zavabia
- Created on: 24-10-13 19:36
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- Plants
- Germination
- Water enters through the micropyle
- causes the cotyledons to burst through the testa
- Amylase digests starch into maltose
- Protease digests protein to amino acids
- Both products are soluble, so diffuse to the embryo plant.
- Glucose is used in respiration, so the seed loses some dry mass.
- Parts of the plant
- Hilium - the first part of the seedling
- Testa - the thick out "shell" of the plant
- Micropyle - The thin part of the seed at the top
- Plumule - will grow into a shoot
- Germinating seed parts
- Plumule - Inside - the base of the Radicle
- Radicle - the tip of the shoot
- Cotyledon - the energy supply
- Testa - the thick outer coating
- Cross vs self pollination
- Self polination
- Advantages
- No reliance on other plants
- Produces less gametes, thefore saving energy/less pollen
- Genetically similar to the parent, so adapted to the enviroment
- DisAdvantages
- Genetically similar - mutations and diseases are passed on
- Less variation to adapt to changes
- Advantages
- Cross pollination
- Advantages
- More variation in offspring - better adaption
- Mutations have a less chance of being passed on
- Dis advangaes
- Reliant on other plants - non in the area = no fertilisation
- can only be pollinated by insects or other pollinating animals
- Advantages
- Self polination
- Germination
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