Can any1 help me??

[Stancy Motha]

I want zee answer to this question:

pls. help it's for six marks so there SHOULD be 6 points. pls. do not give me only the point cuz I know them but I don't know how to link them in short I don't know how it actually happens.

So the question is:

DESCRIBE THE EVENTS THAT FOLLOW POLLINATION AND HOW THEY LEAD TO SEED FORMATION

The point are:

germinates;

(pollen) tube;

(grows down) style;

digestion / enzymes;

(enters) ovule;

ovary;

micropyle;

(male) nucleus / (pollen grain) nucleus / male

gamete;

fertilisation / fuse / join / eq;

ovum / egg / nucleus / female gamete;

ovule becomes seed;

ovule wall becomes seed coat / testa;

ovary becomes fruit;

allow if labelled on diagram


pls answer!!! it serves as practise & also and u'r helpin me & many others out there. thanks in advance!!

 

[poizoned black]

it be better if you answer them in bullet points: (btw this answer has more than six points-u can write them all or any six)

• pollen grains germinate
• pollen tube grows down the stigma and style(absorbs nutrients from the surrounding tissue as it grows)
• pollen tube grows towards the ovule by chemotropism
• pollen tube enters ovule via micropyle
• male nucleus moves down the pollen tube
• male gamete fuses with the female gamete in ovule and fertilization takes place
• zygote is formed
• endosperm is formed
• zygote divides repeatedly to become embryo and ovule becomes seed
• integuments become testa/seed coat
• ovary becomes the fruit

hope this helps

 

[poizoned black]

One question: might sound silly but anywayz what are integuments??