4. Bioenergetics


4.1.1 Photosynthetic reaction Photosynthesis An endothermic reaction in which energy comes from sunlight is transferred from environment to the chloroplasts by light Equation Adaptations of leaves Large surface area - absorb light Thin walls - short diffusion distance...

read more


4.2.1 Aerobic and anaerobic respiration Cellular respiration An exothermic reaction which is continuously occurring in living cells Organisms need energy for Chemical reactions to build larger molecules Movement Keeping warm As oxidation of glucose is incomplete in...

read more