Most Sought After Biology Notes

Most Sought After Biology Notes

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Saturday, 8 July 2017

Seminar Biology SPM bersama Sekolah-sekolah Daerah Kota Tinggi, Johor

April lepas saya berpeluang ke SMK Air Tawar untuk berkongsi ilmu dalam seminar Biologi SPM bersama pelajar dari sekolah-sekolah daerah Kota Tinggi, Johor. Terima kasih kepada semua terutamanya guru-guru, pihak PPD Kota Tinggi, dan terutamanya sekali Cikgu Min dari SMK Air Tawar yang menganjurkan seminar ini :-)











SEMOGA BERJAYA SEMUA!


EXTRA: Contoh soalan KBAT (berserta jawapan) yang dibincangkan berkenaan perentak buatan.

Friday, 7 July 2017

3 Characteristics of Plasma Membrane Explained Using SPM Method

We know that plasma membrane is a SPM (semi-permeable membrane). Now we are going to explain the characteristics of PM using SPM again, according to the model by Singer and Nicholson:









































All the best, and good luck!

P/S:


Monday, 3 July 2017

ANNOUNCEMENT! - Cikgu Heery Cool Notes for Chemistry F4 SPM

I'm in the process of finalizing my cool notes Chemistry F4 SPM. Take a look of them and tell me what do you think:

Cover page (Malay version)
Isotope (Eng version)

Halogen (Eng version)

Metal purification note (Eng version)

- Easy reading and full colour for memorization and quick comprehension. I believe that reading and studying should be a pleasant journey for the students to attain excellent result.

- Affordable price (RM20). I believe the price should be kept low. Especially during this hard times when most Malaysian families are extremely frugal with their spending endeavor. 

- I shall inform you all if it's ready for sale. Take care!

CIKGU HEERY.
  

Sunday, 2 July 2017

COMIC NOTE - Testing the Presence of Reducing Sugar in Food Sample (ABC Step)

Question about testing the presence of reducing sugar is very popular in school tests and SPM exam. The procedure is outlined using ABC step:






















Looks simple enough. But you know Cikgu Heery's note will not be complete without some visual aid along the way...






Now you really can memorize them all. All the best in your study!

Wednesday, 21 June 2017

Understanding Menstrual Cycle - The Early Phase

It's is imperative to comprehend the relationship between hormones, follicle, and endometrium wall during the early phase of menstrual cycle. This is because this phase is the most important part of menstrual cycle which causes it to happen in the first place. The phase can be conveniently represented in the diagram below:































The explanation:
























All the best!

Thursday, 15 June 2017

Whimsy Wednesday - Flower Power.




















Try not to touch/smell/kiss a flower too much next time you encounter them ;-)

BONUS Chem F4: Understanding Isotope

Hello to all Heeryians. Here is it some special isotop-y note for you guys and how to comprehend its concept:




















So, basically isotopes are a group of atoms with similar proton number (thus similar chemical properties) and different neutron number (thus different physical properties). 

Memorizing tips: 
Same proton number = same element = same chemical properties = same 'chemistry'.
Different neutron number = different physical properties = different 'shape'.

I wish to transcend this note into a better visual representation:

























That's better. Kinda freaky though. All the best!

Thursday, 18 May 2017

Comic Note + Soalan KBAT: CLAP Enzymes in Detergents

Today's theme is CLEAN CLOTH:


Don't you just love the blue-y chemical smell that denotes the clean shirt you just washed? Thanks to the enzymes for that. They are applied as components in washing detergents.  I called them the CLAP enzymes. Here are some quick notes:

Click diagram for better view.
















For SPM, this application is one of the most popular KBAT questions. Question example:

Explain the use of enzymes in detergents to wash dirty clothes (10 marks).

Initial answer outline:


















One circle denotes one mark for the answer. You can add 2 points by stating that:
  • enzymes are required in small amounts because one enzyme molecule  can hydrolyze much dirt substrate.
  • washing with warm water is preferred as it will increase the washing's rate of reaction.

That's it, and a perfect score shall be yours. Stay clean!


Monday, 15 May 2017

Understanding Soalan KBAT - You are a...

Before we go for the questions, first we need to understand the meaning of HOTS or KBAT. There are many definitions for it, and all of them can be listed down into three essences, which I called (don't laugh) CUM - complex, unfamiliar/unknown, multiple view.





Now, we shall look into examples of KBAT questions typically presented in Biology exams in Malaysia. Most of them would begin with "You are a...", as stated below:

FORM 4:
1) You are an anatomist explaining how the body utilizes homeostasis to maintain balance. 
2) You are a food technologist explaining how vinegar is used in food preservation.
3) You are an enzymologist explaining how enzymes are applied as detergents.
4) You are a biotechnologist explaining the advantages/disadvantages of cloning.
5) You are a nutritionist explaining how to achieve balanced diet in adolescences.
6) You are an environmentalist explaining the negative effects of uncontrolled deforestation.
7) You are an environmentalist explaining how to manage the thinning of ozone layer.

FORM 5:
8) You are a physician explaining how vaccine injection helps in achieving immunity.
9) You are a cardiologist explaining how to maintain a good cardiovascular system.
10) You are a police officer explaining the adverse effects of drugs to human body.
11) You are a health officer explaining how to maintain a good musculoskeletal system.
12) You are a botanist explaining how a plant can grow tall with hard wood. 
13) You are a  gynecologist explaining how in vitro fertilization helps in overcoming infertility.
14) You are a physician explaining the occurrence of hereditary diseases to a group of parents.

These are mostly discussion-type question which are open-ended and can be answered in many different ways. All you need is to make sure that your answers are pertinent to the given question. The ideal answer outline should contain some of the 5 points given below:

1) DEFINE - what is it?
2) IMPORTANCE - why it is worth talking about?
3) CAUSE - what are the factors?
4) EFFECTS - what are the pleasant/unpleasant consequences?
5) STEPS TAKEN - what should we do about it?

Use this if you face the challenges in answering KBAT question. Do refer the notes given here in the blog from time to time. All the best in your study!

-CH.

Saturday, 13 May 2017

REVISI KOMIK - 5 Perbezaan Utama Pengangkutan Aktif & Pasif (UPDATED FOR SPM 2017)

Pelajar sudah tahu tentang pengangkutan aktif (PA) dalam entri saya sebelum ini di sini

Di sini, pelajar dapat senaraikan dengan mudah 5 ciri PA, menggunakan diagram di bawah:
"kena kejar bini ngamok!"
-------------------------------------------------------------------------------------------
1. PA menggunakan tenaga dalam bentuk ATP. (naik gelongsor).
2. Bahan meresap dari kawasan kepekatan rendah ke tinggi.
3. PA melawan kecerunan kepekatan (naik gelongsor).
4. PA hanya berlaku dalam sel hidup.
5. PA berlaku sehingga satu bahagian mengandungi semua bahan (0% --> 100%).
------------------------------------------------------------------------------------------

Bagaimana pula dengan Pengangkutan Pasif? (PP)?

Lihat diagram di bawah:
"main gelongsor masuk gaung"

Senaraikan 5 ciri PP:
---------------------------------------------------------------------------------------------
1. PP tidak mengunakan tenaga (turun gelongsor).
2. Bahan meresap dari kawasan kepekatan tinggi ke rendah.
3. PP menuruni kecerunan kepekatan (turun gelongsor).
4. PP berlaku dalam sel hidup & sistem bukan hidup (mcm mesin).
5. PP berlaku sehingga keseimbangan tercapai  (50% <---> 50%).
----------------------------------------------------------------------------------------------

Semoga Maju Jaya!

Friday, 5 May 2017

Sekolah Kita - 5 Contoh Penipuan/ Penyelewengan Pedagogi oleh Pihak Luar

Sepanjang saya membuat seminar di sekolah, guru-guru sering mengadu bahawa mereka didatangi oleh pihak luar yang mempromosikan kaedah belajar mereka yang bertentangan dengan konsep dan teori pendidikan yang sedia ada. Maka, hari ini, kita akan analisis 5 jenis penyelewengan yang biasa berlaku di sekolah akibat peranan media atau pihak luar yang memberikan informasi yang salah berkaitan konsep P&P.

1. Neuro-Linguistic Programming (NLP)


Program ini menyatakan bahawa dengan apabila kita 'reset' sistem saraf kepada ayat-ayat tertentu, kita boleh mengubah perasaan, sikap, atau tingkah laku yang kita ingini. 

Sebagai contoh, ketika anda gembira, genggam tangan anda dan sebut YES. Praktikkan berkali-kali. Lama-kelamaan, ada akan automatik gembira setiap kali anda sebut YES atau genggam tangan anda. 

Tetapi, kajian saintifik mengesahkan bahawa tiada hubungan signifikan antara sistem saraf, bahasa, dan tingkah laku yang ditunjukkan. Malah, NLP dianggap sebagai pseudoscience dan menjadi contoh rujukan lazim mengenai penipuan pendidikan di Amerika Syarikat.


2. Otak Kiri/Kanan


Konsep ini menyatakan bahawa bahagian otak berbeza mengawal aktiviti yang berbeza-beza mengikut skil dan bakat seseorang. Maka, jika seorang murid pandai melukis, dia dianggap mempunyai otak kanan yang hebat. Juga, jika dia lemah dalam Matematik, maka murid tersebut perlu mengikuti bengkel yang boleh 'mengaktifkan' otak kirinya.

Kajian menunjukkan bahawa otak manusia adalah kompleks dan tidak terhad kepada kiri/kanan. Juga, konsep ini adalah merbahaya kerana seseorang murid akan dilabel dan ini akan menghadkan potensi murid tersebut untuk maju dalam usaha pembelajarannya.


3. Brain Gym

Program ini mengatakan bahawa teknik senaman tertentu akan merangsang otak kita kepada tahap genius. Memang benar bahawa aktiviti senaman umum (seperti jogging) akan memgekalkan keaktifan dan kesihatan otak secara keseluruhan. Tetapi, tiada kajian saintifik yang membuktikan bahawa teknik senaman khusus akan menyebabkan otak 'diaktifkan' dan meningkatkan IQ seseorang.  

4. Stail Belajar (Learning Styles)


Konsep ini menyatakan bahawa murid-murid belajar dengan optimum mengikut cara atau stail belajar masing-masing. Sebagai contoh, pelajar yang suka membaca buku komik lebih cenderung untuk belajar secara visual.

Seperti otak kiri/kanan, kaedah ini dianggap terlalu ringkas kerana murid-murid sebenarnya boleh diajar mengikut mana-mana stail yang bersesuaian dengan kemampuan pelajar, silibus, suasana pembelajaran, dan kaedah penilaian. 


5. 'Enriched Environment' 




Konsep ini mengatakan bahawa murid-murid perlu didedahkan dengan jumlah rangsangan atau stimulus maksimum oleh kerana minda mereka masih berkembang. Maka, murid-murid perlu didedahkan dengan rangsangan visual dan bunyi berterusan melalui televisyen dan telefon pintar (smartphone).

Tidak dinafikan bahawa televisyen dan smartphone ialah objek biasa dalam dunia moden masakini. Tapi, alat-alat ini berpotensi merendahkan fokus dan boleh menghadkan kemampuan mereka untuk menafsir dan menaksir maklumat. Maka, penggunaan alat-alat ini patut dihadkan di bawah pengawasan ibubapa dan guru.

Diharap para guru lebih peka dalam hal ini dan tidak mudah ditipu oleh pihak luar yang mengaku mereka pakar dalam bidang pendidikan tetapi tidak mempunyai kelulusan yang sepatutnya.

-Cikgu Heery.

Friday, 28 April 2017

Comic Notes - 6 Points of Crossing Over in Prophase 1 Meiosis

What's up Heeryians. Today's theme is FRIENDSHIP.


You shake hands with your friend. You exchange greetings. You leave. Now, apply them all to crossing over process in Meiosis 1!




























Sounds easy enough. Now you will look at people meeting not the same again :-)


ALL THE BEST