How to Score Paper 3, Biology.

Assalamualaikum guys...

Today, I would like to give some tips about how to score highest mark in Paper 3, Biology. These guidelines is created by one of our Biology Senior Teacher, Mr. Zolkofli Awang, from MRSM Kepala Batas, Penang. If you have any problems to understand all the tips given, don't be hesitate to contact me through my email address, syahirah_skyhawk85@yahoo.com. So.. Here are the tips...

PAPER 3 STRUCTURE

QUESTION 1

(a)    FORMULAE 1: Technique in Reading Questions.         

·         Read the stem of the questions UNDERLINED & MARK

·         Re-write  MV [cMV, aMV],  RV [cRV, aRV] &  CV

·         DON'T ANSWER the questions until you identified the variables

·         Use magic box* 

(b)    FORMULAE 2:   Measuring using numbers

·         Read/Measure/count + decimal point (if compulsory) +  Unit

(c)    FORMULAE 3:   Observation

·         COPY  title of the table* =  MV +  CRV and construct a sentence

·         Don't use your own words

·         No need to compare

*if the data / experiment result are displayed in a table

(d)   FORMULAE 4:   Inference

·           ..... (give reason) because + ARV

·         Find a theory,  why the phenomenon happened

·         Relate between aMV and aRV

I think that's all for this time. I will continue with other tips in the next entry especially the 'Magic Box' mentioned in Formulae 1. May all these tips help you a lot during answering all the questions in Paper 3. All the best for you. Good luck!

COMPARISON BETWEEN ANIMAL CELL AND PLANT CELL

ANIMAL CELL

PLANT CELL

Comparison between plant cell and animal cell

Structure of Plasma Membrane

Phospholipids Bilayer

The picture above show a structure of phospholipids bilayer. This structure can be found on the plasma membrane. The components of this structures are:

1. Phospholipids

2. Protein

3. Chloesterol

Phospholipids

The structure of phospholipids consists of :

1. Hydrophilic Head - love water molecule

2. Hydrophobic Tail - hate water molecule 

Stucture of Phospholipids

Protein

There are two proteins:

1. Carrier protein

2. Pore protein

Example of substances that can pass through into :

1. Carries protein - Large water molecule [ Glucose and Amino Acids]

2. Pore protein - Small water molecule [ Ions]

Cholesterol

Makes the bilayer stronger, more flexible and less permeable to water-soluble substances such as ions