hari ni min nak buat quiz chapter 1 form 5: organisation of plant tissues and growth

🧬Biology with Heera👩‍⚕

🔹The Formation of Embryo Sac in an Ovule 🥚🌺

➤ Ovule is formed from an ovarian tissue. Each ovule contains one megaspore mother cell (2n). [2m]
➤ The embryo sac mother cell (2n) undergoes meiosis to form 4 haploid megaspore cell (n). [2m]
➤ Three megaspores degenerated and only one megaspore will continue to develop. [1m]
➤ The remaining megaspore undergoes mitosis three time to form a with eight nuclei. [2m]
➤ Three cell move to one end near to micropyle, forming two synergid cell and one egg cell. [1m]
3 cell = 2 synergid + 1 egg
➤ Three more cells move to another end to form three antipodal cell. [1m]
➤ One cell with two nuclei located at the center to form polar nuclei. [1m]
➤ The structure formed is known as embryo sac which is protected by integument. [1m]

꘎♡━━━━━━━━━━━━━━━━♡꘎

✅Total = 11 marks
The keywords are bolded ya

#biology #c6 #f5
#heera
*ೃ༄@biologyspmnotes

🦋*ੈ✩‧₊˚ 『 @heeranotes 』

KOLEKSI SOALAN BIOLOGI K1 TRIAL SPM 2021 🥳

01 TRIAL MELAKA
https://forms.gle/esYVFHRPyJjcDCQXA

02 TRIAL N9
https://forms.gle/77Sdg2ubtrPTRXDs7

03 TRIAL KELANTAN
https://forms.gle/WCpnMRpGgiRxdZ5H8

04 TRIAL PAHANG
https://forms.gle/Gy3gD4XGMxiu2Bqi8

05 TRIAL JOHOR
https://forms.gle/MM8yJBN2k36ic235A

06 TRIAL SABAH
https://forms.gle/m5poHCVgqCyUUs6j7

07 TRIAL SELANGOR
https://forms.gle/BT4RS4WTToWiMcXh9

08 TRIAL SBP
https://forms.gle/eP3YuA3xwxNmiVKu6

09 TRIAL MRSM
https://forms.gle/nz92W2RkuREQMWDZ8

CREDITS TO RESPECTIVE OWNERS ✨

BIOLOGI , goodluck

Assalamualaikum and hye guys

Some of the answers in the scheme are inaccurate❌
So, pastikan refer buku teks to check your answers. And also ask your teacher if you're unsure ya☺️

Thank you

🧬Biology with Heera👩‍⚕

*ೃ༄The Formation of Pollen Grains in an Anther 🌺🌾

➣Occurs in the anther
➣In the anther, there are four pollen sacs on each lobe
➣In each pollen sac, there are hundreds of pollen mother cell called microspore mother cell which are diploid (2n)
➣The microspore mother cell divides by meiosis to produce 4 haploid (n) microspore cells. They are known as tetrad.
➣Each microspore mother cell undergo mitosis to become pollen grains.
➣The nucleus in the pollen grain divides by mitosis and produce 2 nuclei, namely the generative nucleus and tube nucleus.

꘎♡━━━━━━━━━━━━━━━♡꘎

✅Total : 8 marks

#biology #c6 #f5
#heera

🦋*ੈ✩‧₊˚ 『 @heeranotes 』

🧬Biology with Heera👩‍⚕

༊*·˚How does POLLINATION occur ?🐝🪰🌼🌬

⚡️Pollination occurs when the wall of anther is dry, and it shrinks and split
⚡️This causes pollen grain from pollen sac to release.
⚡️The pollen grain is transferred to stigma by pollinating agents such as insects, wind and animal.
⚡️The pollen grains stick to the glucose in the stigma.
⚡️The glucose molecules then stimulate the germination of pollen grains.
⚡️It will form a pollen tube.
⚡️The pollen tube grows down towards the ovule through the style.
⚡️The generative nucleus will move along the pollen tube towards the ovule and divide by mitosis to form 2 male gametes (n).
⚡️End of pollen tube secrete enzyme to digest the tissues of style.
⚡️Upon reaching embryo sac, pollen tube penetrate the ovule through micropyle.
⚡️Tube nucleus degenerate. Both male gamete enter the embryo sac.

꘎♡━━━━━━━━━━━━━━━━♡꘎

#biology #c6 #f5
#heera

🦋*ੈ✩‧₊˚ 『 @heeranotes 』

Sekadar untuk maklumat tambahan kepada semua calon SPM yang mengambil biology sama Ada batch 05 @ O6.

Dalam silibus baru kssm ,

F4 → 15 BAB

TEMA ( ASAS BIOLOGY & FISIOLOGI DALAM MANUSIA )

So, Masa F4 Kita akan banyak belajar berkaitan degan anotomy & system berkaitan MANUSIA { sometimes boleh feel macam belajar medic pun Ada 😂)

Time F5 → Kita akan melalui lagi 13 Bab

TEMA 1 {FISIOLOGI tumbuhan berbunga🌱 }.
➡️ Bukan "
pertanian" tetapi lebih kepada botani 🌱

TEMA 2 {Alam sekitar }

TEMA 3 { lebih kepada Genetik }


So , dalam SPM BIOLOGY saja Kita Ada 28 chapter 📚 .

Baca buku Hari ² Tak menjamin Kita boleh dapat A dalam Biology time SPM nanti, sebagai student Kita kena Cari alternative lain dgn bantuan guru ².

Cara paling terbaik Ialah

1) Kuasai konsep
→ Biology is not 💯 menghafal , awak kena faham . That is most common mistake yg student buat.

2) Awak tahu teknik menjawab
→ Bila awak mula nampak system menjawab inshallah awak tahu Cara nak jawab macam Mana.

Ambil peluang sekiranya terdapat bengkel teknik menjawab samada atas talian or cikgu sekolah awak yg buat.

Nasihat ini Saya tuju kepada diri Saya juga Dan kawan ² yang lain. Harap dapat membantu awak semua untuk mulakan langkah dalam perjalanan Kita dalam SPM yg semakin hampir ini ☺️⚡.

🧬Biology with Heera👩‍⚕

➣Double Fertilisation
🌸Diploid ZYGOTE (2n)
🌸Triploid ENDOSPERM NUCLEUS (3n)

#biology #c6 #f5
#heera
*ೃ༄@biologyspmnotes

🦋*ੈ✩‧₊˚ 『 @heeranotes 』

🧬Biology with Heera👩‍⚕

➣Double Fertilisation
🌸Diploid ZYGOTE (2n)
🌸Triploid ENDOSPERM NUCLEUS (3n)
(PDF)

#biology #c6 #f5
#heera
*ೃ༄@biologyspmnotes

🦋*ੈ✩‧₊˚ 『 @heeranotes 』

KOLEKSI SOALAN BIOLOGI K1 TRIAL SPM 2021 🥳

01 TRIAL MELAKA
https://forms.gle/esYVFHRPyJjcDCQXA

02 TRIAL N9
https://forms.gle/77Sdg2ubtrPTRXDs7

03 TRIAL KELANTAN
https://forms.gle/WCpnMRpGgiRxdZ5H8

04 TRIAL PAHANG
https://forms.gle/Gy3gD4XGMxiu2Bqi8

05 TRIAL JOHOR
https://forms.gle/MM8yJBN2k36ic235A

06 TRIAL SABAH
https://forms.gle/m5poHCVgqCyUUs6j7

07 TRIAL SELANGOR
https://forms.gle/BT4RS4WTToWiMcXh9

08 TRIAL SBP
https://forms.gle/eP3YuA3xwxNmiVKu6

09 TRIAL MRSM
https://forms.gle/nz92W2RkuREQMWDZ8

CREDITS TO RESPECTIVE OWNERS ✨😍❤️

Dalam proses

Ingaaattt