The production of extracellular enzymes

In the nucleus, the DNA double helix unwinds & exposes its two strands for the synthesis of mRNA strand.

The mRNA (messenger RNA) leaves the nucleus through the nuclear pore and moves to a ribosome.

The mRNA attaches itself to the ribosome.

Proteins are synthesised & transported through the space within the rough ER.

Proteins depart from rough ER wrapped in vesicles (transport vesicle) that bud off from the membrane.

The transport vesicle then fuse with Golgi apparatus. The proteins are further modified, packaged, sorted (eg. carbohydrates are added to proteins --> glycoproteins)

Secretory vesicles then bud off from the Golgi apparatus & travel to plasma membrane.

They then diffuse with the plasma membrane before being released outside. 

Common problems among students (majority)

1. Poor memory
2. Procrastination
3. Laziness
4. Addicted to computer games, TV, internet
5. Difficulty in understanding what is taught
6. Easily distracted
7. Short attention span
8. Day-dreaming
9. Exam anxiety
10. Making careless mistakes
11. Pressure stress from parents
12. Too much to study and not enough time
13. Lack of motivation
14. Give up easily
15. Boring teachers
16. No interest in what they are learning