bio end of years

• Ingestion: Taking in food
• Photosynthesis: Making glucose using light energy
• Saprotrophic: Gains nutrition from breaking down

  dead/decaying matter outside the

  body e.g. fungi
• Autotrophic: Gains nutrition by making their own

  food by photosynthesis (producers)

  e.g. plants
• Heterotrophic: Gains nutrition by consuming nutrients

  (consumers) e.g. animals
• Ingestion: Taking in food
• Photosynthesis: Making glucose using light energy
• Saprotrophic: Gains nutrition from breaking down dead/decaying matter outside the body e.g. fungi
• Autotrophic: Gains nutrition by making their own food by photosynthesis (producers)e.g. plants
• Heterotrophic: Gains nutrients by consuming nutrients(consumers) e.g. animals
• Aerobic respiration is the release of energy using oxygen
• Aerobic respiration is the release of energy using oxygen
• One of the characteristics of living organisms is respiration , the release of chemical energy in cells . cells use the energy for all their reactions and processes
• Cells use energy for all their reactions and processes . they include:

  • movement - muscle contraction
  • making new substances from small molecules , e.g proteins from amino acids
  • growth and repair - putting together substances to make new cells
  • active transport - moving substances through a cell membrane against a concentration gradient
  • nerve impulses- energy is needed for nerve cells to pass impulses along their length
  • heat - to keep mammals and birds at a constant body temperature