Topic: Reproduction
Aim: Describe the structure of a seed and the
requirements for a plant to germinate.
Do Now:
1. Copy the topic, aim and HW.
2. Start the Metamorphosis ISA
HW: Finish the Metamorphosis ISA
Castle Learning – Reproduction due Tuesday, April 19th
Earth Day Poster Due Friday!!!
1
Fertilization
3
2
Zygote
Cleavage
A
B
C
4
Blastula
5
Gastrula
1.What does the pollen
stick to?
2.What structures
brings pollen to the
eggs?
3.What will the ovary
and the ovules
eventually develop
into?
Seeds
structure
• Seed coat: protects embryo
• Cotyledon: food for embryo
Germination • Early growth stage of plant
embryo
• Temperature
Factors
•
Water
affecting
germination • Oxygen
https://www.youtube.com/watch?v=WIs1YYI9UDI
Identify each seed structure below.
Embryo
A
B
C
Let’s summarize…
1. What happens when a seed germinates?
It grows and develops into a seed.
2. Identify the three parts of a seed.
Seed coat, embryo, cotyledon
3. Identify the source of food for the embryo.
Cotyledon
4. Identify the factors necessary for germination to
occur.
Temperature, oxygen, water