The questions in this quiz are suitable for GCSE combined science students studying cellular respiration, aerobic and anaerobic respiration, oxygen debt, and metabolism. If you struggled with the ...

Metabolism close metabolismAll the chemical reactions in the cells of an organism, including respiration. is the term used for all the chemical reactions that happen inside an organism's body.

Air pollution, smoking, passive smoking etc have become big challenges for lung health. Lung cancer is one of the major and ...