Energy in Biomass

Question 1

Energy in green plants and algae

Answer 1

Radiation from the sun is absorbed

transfer light energy to chemical energy during photosynthesis

energy is stored in substances in plant cells

Question 2

Biomass

Answer 2

mass of living material

at each stage biomass decreases

energy contained in biomass reduces at each stage because:

• materials and energy are lost in an organisms waste material (e.g. faeces)
• energy is transferred to the surrounding as heat
• lost as movement
• lost during growth