What is a catalyst?

A substance which increases the rate of a reaction without being consumed

Related Biology GCSE answers

All answers ▸

Respiration and photosynthesis-what are the similarities and differences?


menstrual cycle and contraceptive pills


Describe the Control of Blood Sugar Concentration in the body under normal physiological conditions (4 Marks)


State whether arteries carry blood towards or away from the heart and then give two features of arteries relating to this role