Answers to the following homework

Answers for the following are as follow:

Cell structure and organisation MCQ - 22 Questions
Cell structure MCQ

Unit 2: Diffusion and Osmosis- MCQ 43 Questions
Diffusion and Osmosis MCQ

Homework on Diffusion and Osmosis- 10 MCQ + 2 Structure Questions
Unit 2 Homework

Homework on Osmosis - Visking Tubing
Visking Tubing Exercise

Practical on examining the Onion Epidermis cell under the microscope
Examining onion epidermis cell under the microscope

Test and New announcement

Happy National Day Students, good news for all of you though some of the classes already know about it.
MA 4M, MA 4N, MA 4O, test is postponed to 1st of March 2010, whereas for MA 4P, test will be on the 2nd of March 2010.

Extra class for MA 4O will be on the 25th February 2010, Thursday 1 to 2 pm whereas MA 4M will be on 25th February 2010, Thursday 2 to 3pm.

Please come to the extra class, attendance is compulsory.
Be prepared with all your notes, exercises anything I have given to you for the 9 weeks in a folder and let your friends know as some of you do not have the internet at home.

Regards
PS

Topical Test 1

There will be a topical test on topic 1 and 2 on the 24th February 2010 for MA 4N, MA 4M and MA 4P, and where as for MA 4O, it will be on the 27th February 2010.

Please revise for the test, as this will be used as your grade for your report.

Cheers
PS

Notes on Topic 3: Enzyme

Please download the notes for Topic 3 by clicking on the link below. For those who wanted to print them yourself, please print it out before 22nd of Febuary 2010. As we are starting on topic 3 next week, 22nd Febuary 2010.

Topic 3: Enzyme

Practical Sessions

Paper 3: Practical test ( 1 hr 15 mins)
This paper consists of two or three compulsory questions. 40 marks, weighing 25% of your overall GCE O'level Biology course.

Below is the link to the attachment on 'A guide of biological drawings'.
NOTE: All the drawings and labeling should be in pencil.
A Guide on Biological drawings

Practicals done:
Febuary
1. Drawing of Hibiscus leaf.
2. Examining and prepare slide of onion epidermis cell under the microscope
3. Preparation of slide on Elodea.
Marking Scheme for Elodea, please click on the link below.
Elodea Marking scheme
4. Osmosis- Potato in different sucrose solution.
5. Food test- S32, S33 and Solution A

Chapter 1: HW on Cell Structure and Organisation

These are the answers to the essay questions on the homework for cell structure. Please download the attachment if you have missed the discussion/correction during the class.
Homework on Cell

Topic 2: Movement of molecules notes used in class

Please click on the link below and save/open the file for the coloured diagrams. Since I have printed the notes for all of you, please pay me with the book when the book arrives.
Topic 2 Notes used in class

Welcoming note

I have decided to create a blog for the upcoming chapter notes and presentation notes.

Please feel free to drop any comments here if you are too shy to do so in the classroom.

Any enquiries or problems related about any topics which I have taught you before and you still do not understand are welcome, also my teaching strategies, any improvement which you want me to make for your own benefits are also welcome or any criticism, whether I am going too slow, or too fast or is it boring you, please let me know.

Let us all learn together. No matter how small the deed is, it really does makes a difference.

Cheers
Ping Sing