Sexual reproduction in plants (2.5) | Edexcel A-level Biology B - 9BI0 | KnowledgeSet

Sexual reproduction in plants

Biology · A-Level · Edexcel · Edexcel A-level Biology B - 9BI0 · Specification point · 2.5 · Cells, Viruses and Reproduction of Living Things

Next Steps

Read Notes

Read clear notes for this topic.

Practice Questions

Coming soon

Exam Questions

Coming soon

Flashcards

Flip through flashcards to lock it in.

Lesson

Coming soon

Ask Sage

Get help from Sage on this topic.

2.5 Sexual reproduction in plants

Students should:
$i Understand how a pollen grain forms in the anther and the embryo sac forms in the ovule. ii Understand how the male nuclei formed by division of the generative nucleus in the pollen grain reach the embryo sac, including the roles of the tube nucleus, pollen tube and enzymes. CORE PRACTICAL 4: Investigate the effect of sucrose concentrations on pollen tube growth or germination. iii Understand the process of double fertilisation inside the embryo sac to form a triploid endosperm and a zygote.$

Students should:

i Understand how a pollen grain forms in the anther and the embryo sac forms in the ovule. ii Understand how the male nuclei formed by division of the generative nucleus in the pollen grain reach the embryo sac, including the roles of the tube nucleus, pollen tube and enzymes. CORE PRACTICAL 4: Investigate the effect of sucrose concentrations on pollen tube growth or germination. iii Understand the process of double fertilisation inside the embryo sac to form a triploid endosperm and a zygote.