1) Illustrate the difference between and exergonic and endergonic reaction?

2) describe why do environmentalists claim that a raise in forests, that is, rainforests, will slow down the effects of the global warming?

3) Describe how fats and proteins might be used as fuels in the cells?

4) describe the function of a catalyst in a biochemical reaction.

5) List four factors which affect the rate of photosynthesis.