Edexcel IGCSE Biology · Spec 3.6
Germination
The conditions needed for germination — water, oxygen and a suitable temperature.
Biology revision video
Germination
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Spec 3.6
What you need to know
- Recall the conditions a seed needs to germinate
- Describe how a seed uses its stored food
- Explain why the young plant later makes its own food
Active recall
Quick check
Answer each question before opening the answer.
Why do germinating seeds need water and oxygen?
Water activates enzymes and mobilises the food store; oxygen is needed for aerobic respiration to release energy for growth.
What is the role of the seed's food store?
It supplies energy and nutrients until the seedling grows leaves and can photosynthesise.
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