Thursday 15 November 2012



To all my beloved biology students  5 Arif 2012 , below is the messages and tips that I found from Teacher Mahadiah Guru Cemerlang Biology Blog…wish u all the best and the most important thing don’t give up. It never to late…think of your future would be better if all of your subject get A+ including Biology…Happy Revising and May God bless You…Love Teacher  Syahidah : )
BIO...here I come!
By now everybody should have confident to sit for Bio papers...With all the given tips by your teachers...for two years!...and I'm hoping I might do a bit of contribution to you too.....

Well...I got mesages from all around the country...I've gone tru Andrew Choo web (bcoz somebody recommended it to me...)..I feel it is safer for you to know the contents of Bio as a whole and able to relate all the chapters well when you answer the questions....
..Among last minute advice include:

1. Read the question well
2. Underline the requirement of the questions
3.Look at the marks allocated.
4.Prepare mind map/flow chart as a draft before start writing.
5. Start like a story teller....
6.End up your essay properly.
7.Write freely...step by step..
8.Dont worry about the language..insert BM terms if you suddenly get stuck with english words.
9.Dont panic..take a deep breath if suddenly you get stuck...slowly recall the facts required...
10...have faith and confidence ...in yourself

...and here are some of the topics being mentioned by my networking friends...

Paper 2:
* Plant cell, organelles, hypotonic, isotonic, hypertonic...
*Enzymes
* meiosis,mitosis, cloning, genetic engineering
*respiration anaerobic/aerobic,
*nutrition:ruminant/rodent
*assimilation
*homeostasis-osmoregulation
*menstrual cycle-hormones, negative feedback mechanism, spermatogenesis/oogenesis, placenta
*Double fertilisation
*Mendel's Law 2
*Variation- mutation
*Reflex arc - synapse


Paper 3:
Question 1:
1. Transpiration/
2. Photosynthesis

Question 2:
....Many possibilities...But one thing for sure, they are any of these:

Design and conduct experiments to study factors affecting the rate of transpiration:
a) air movement,
b) temperature,
c) light intensity,
d) relative humidity

Design an experiment to show the effect of different quantities of water intake on urine output.

Conduct experiments to study the effects of
i. pH
ii. temperature on the activities of amylase and pepsin.

Discuss the effects of enzyme substrate concentration on enzyme activity.

Conduct an activity to determine the energy value in food samples.

Conduct an experiment to determine the vitamin C content in various fruit juices

Design experiments to study the digestion of starch and proteins
Design an experiment to study the effects of macronutrient deficiency in plants,
Design an experiment to investigate the effect of light intensity on the rate of photosynthesis,
the effects of :
i. light intensity
ii. temperature and
iii. concentration of carbon dioxide

on rate of photosynthesis.
Carry out an experiment to investigate anaerobic respiration in yeast.
The effect of temperature on the rate of anaerobic respiration in yeast

Conduct an experiment to investigate the differences between inhale and exhale air

Discuss and conduct an experiment to show the effects of cigarette smoke on white cotton wool and draw an anology between the lung and the white cotton wool.

Conduct an experiment to study the intraspecific competition and interspecific competiton of plants, e.g. maize and rice

Conduct a field study or use an appropriate anology to:
i. estimate the population size of animals such as garden snail and wood lice,
ii. investigate the distribution of plants using the quadrat sampling technique,

Plan and conduct an experiment to study the relationship of population distribution of an organism with changes in any one of the abiotic factors such as pH, temperature, light intensity and humidity.

Suggested organisms:
Pleurococcus, Lemna

Conduct an experiment to study the effects of temperature, pH, light and nutrients on the activity of microorganisms e.g. Bacillus subtilis or yeast

Conduct an activity to analyse data on air pollution index of some cities within and outside the country,and make and inference on the sources of pollution.

Conduct an activity to analyse data on water pollution , such as Oxygen Demand (BOD) value and content to heavy metals in some rivers,and make an inference on the sources of pollution.

Correlate different sizes of cubes to total surface area / volume (TSA/V) ratio,
Discuss how the (TSA/V) ratio affects the movement of solutes to the interior of cubes,
Design and conduct experiments to study factors affecting the rate of transpiration, i.e.:
i. air movement,
ii. temperature,
iii. light intensity,
iv. relative humidity.

Design an experiment to show the effect of different quantities of water intake on urine output.
Conduct an activity to study the growth of a plant, e.g. onion, maize, or balsam.
Conduct an activity using coloured buttons/beans to illustrate Mendel’s First Law.
Conduct an activity to investigate variation in humans and present the data graphically

...ALL THE BEST...

No comments:

Post a Comment