Biology B A-Level
Embryo sac
What Embryo sac means in Biology B A-Level, as defined for Pearson Edexcel.
Definition of Embryo sac
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Reference: Pearson Edexcel
Formed when one surviving haploid megaspore undergoes mitosis to produce eight nuclei, including the egg cell and two polar nuclei.
Topics that use Embryo sac
- Topic 2: Cells, Viruses and Reproduction of Living Things (Pearson Edexcel A-Level)
Related terms
- Cell theory
- Early embryonic development
- Generative nucleus
- Pollen grain
- Treatment and prevention of viral diseases
- Tube nucleus
- Viral structure and classification
- Ethical implications of medical interventions
Using Embryo sac in the exam
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