Sexual Reproduction in Plants - A Level Biology

2.5 Sexual reproduction in plants
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.
iii Understand the process of double fertilisation inside the embryo sac to form a triploid endosperm and a zygote.

0:00 Intro to plant reproduction
0:31 Flower anatomy
1:50 Microgametogenesis
2:28 Pollination
3:22 Megagametogenesis

[clara-dfkm]

what a freaking gem. i am memorising every word and that is my 2.5 revision done!! (+ exam questions). will update on how test goes.

[rahandsaid]

for the love of god, pls release all the videos you have on edexcel biology b

[tdgeorgas]

Thank you for this great video. Just a quick remark, sorry if I repeat this, I haven't read any previous comments. at timepoint 2'01'' you say that the mother cell produces by mitosis the tetrad, where actually it is through meiosis. You write this correctly on the screen so hopefully, it does not confuse any student.

[mrm]

My exam is in Friday and you’ve literally just explained everything I was struggling with for 2 weeks in 6 minutes thank you so much

[San-rpig]

Wow, I'm incredibly grateful. This is sheer work of art, You can simplify anything!

[sadies]

Thank you so much! Had no clue about this, realised it was on my exam on tuesday, and now i feel like an expert

[Jimmyeatshrimp]

you, sir, have saved my grades thank you

[bluebowser]

would u ever consider doing a plant disection video?

[cooliocoolio-gv]

great vid man, thanks. Spelling mistake at 02:04 tho.. my meiosis

[haochenli]

IAL BIOLOGY U2 tomorrow hope the best!!!

[bapbapyouredead]

My paper 1 Edexcel b is tomorrow wish me luck 😆😆

[hamzahshakeel]

brilliant video you just went WAY too fast.