This type of metabolic reaction gains electrons.

Catabolic reactions gain energy. By breaking down organic molecules into smaller molecules catabolic reactions relese potential energy from the chemical bonds of the molecules. Some of the energy of catabolic reactions is turned into ATP and the rest is expelled as heat. 

1.989×10^30 kg is the weight of the sun.

I'm sorry to hear that. i will try to answer your other questions if it is within my ability. : )answers: my favourite colour is black.my favourite food is pasta.my favourite school subject is english, but i do also like lunch time.my least favourite subject is history as well as geography. i have currently garnered a quite equal hatred for both of the subjects.what about you? well, you for the points. : )