GCSE Biology Unit 2 (14)

Enzymes and Respiration

• Most chemical reactions inside the body are controlled by enzymes - including the ones in respiration, protein synthesis and photosynthesis.
• Enzymes help to build amino acids and proteins
• They are used to synthesise molecules like amino acids - the ones you don;t get from your diet.
• They also catalyse protein synthesis by joining together amino acids.
• These proteins could be enzymes - it works in a circle.
• Respiration does not mean "breathing in and out"
• It involves many reactions, all of which are catalysed by enzymes.
• These are really important reactions, as respiration releases the energy that the cell needs to do just about everything.
• Respiration is the process of releasing energy…