National exam becomes the hot topic in most of discussions. Though the Supreme Court has rejected an appeal by the go-vernment on the organization of the national exams, the controversy over whether it is necessary to maintain the national exams (UN) has continued. Some debates include the primary questions such as; does the quality of Indonesia education depend on the national exam?, will the quality of the Indonesian education system worsen without natipnal exam?

People, who support the national exam explain that the quality of the Indonesia education system will drop without the national exam, so they try to defend the current system.

However there are people who disagree with the opinion. Those who against this national exam kept in our high school education say that it doesn't need the national exams because the quality of education does not just depend on the national exam. Further, the national exam only measures a small portion of students' competence in specific subjects, and does not measure students' competences throughout the semester.

In fact, the national examination can still be useful as an instrument to evaluate or detect the level of students' cognitive competence in several subjects, on a national scale.

 

source : http://bos-sulap.blogspot.com/2010/02/national-exam-in-pros-and-cons.html

 

What is photosynthesis? Photosynthesis is a food-making process that occurs in green plants. It is the chief function of leaves. The word photosynthesis means putting together with light. Green plants use energy from light to combine carbon dioxide and water to make sugar and other chemical compounds.

How is the light used in photosynthesis?

The light used in photosynthesis is absorbed by a green pigment called chlorophyll. Each food-making cell in a plant leaf contains chlorophyll in small bodies called chloroplasts. In chloroplast, light energy causes water drawn form the soil to split into hydrogen and oxygen.

What are the steps of photosynthesis process? Let me tell you the process of photosynthesis, in a series of complicated steps, the hydrogen combines with carbon dioxide from the air, forming a simple sugar. Oxygen from the water molecules is given off in the process. From sugar together with nitrogen, sulphur, and phosporus from the soil-green plants can make starch, fat, protein, vitamins, and other complex compounds essential for life. Photosynthesis provides the chemical energy that is needed to produced these compounds.
source : http://bos-sulap.blogspot.com/2010/10/explanation-text-about-photosynthesis.html