Title: I. Dispersal of Fruits
1I. Dispersal of Fruits Seeds
2Dispersal
- It is the scattering of fruits and seeds to other
places.
3Importance of Fruits and Seeds Dispersal
- This enables new plant seedlings to grow better.
4What are the characteristics of fruits and seeds
that are easily carried by wind
small
dry
very light
5Fruits with winglike structures
narra
apitong
6Other fruits with parachute like structures
kogon
kapok
7Fruits/ Seeds carried by water
coconut and kalumbobot
8Fruits/ Seeds dispersed by animals
9- Bright-colored and sweet fruits attract animals.
- When these animals eat the fruits they swallow
the seeds and later expel them with their feces.
- The seeds grow into new plants if the conditions
in the place are favorable.
10Fruits with hooks bristles and sticky surfaces
attach themselves to the fur hair or feathers of
some animals
This is another way by which animals scatter
fruits or seeds.
11Some fruits are explosive. When the seeds
inside them are ready to grow the fruits
explode and scatter the seeds. The fruits of
ipil-ipil
camachile
12Answer the following questions in your notebook
- What is the meaning of dispersal
- What would happen if the seeds of plants were not
dispersed - What are the characteristics of fruits and seeds
that are dispersed by wind By water
13Parts of the Seed
Dicot or Dicotyledons
14Parts of the Seed
Monocot or monotocotyledons
15Common Parts of the Seed
- Seed Coat
- Embryo
- Endosperm
16Meaning of Parts of the Seed
seed coat
- It is tough and waterproof.
- It covers and protects the embryo.
endosperm
- It is the food supply of the seed.
17- Or the seed leaf absorbs the food in the
endosperm and transports it to the embryo.
cotyledon
- It is the first part of the seedling.
- It becomes the primary root.
radicle
18- It is the germinating seedling of a plant.
- (stem)
hypocotyl
hilum
- It is the germinating seedling of a plant.
- (stem)
19Please answer Activity Sheets 1.8-1.10
20III. Seed Germination
21Germinate
How does a seed Germinate
- A seed needs three things to germinate
1- water
2- oxygen
3- right temperature
